plus what made this year's military parade different from those we've seen in the past. the mayor of one suburb in kyiv says it has come under rocket attack today. this as a deadline looms in the sea city of mariupol. moscow claims to have cleared areas of all ukrainian forces and is demanding remaining fighters lay down weapons and ammunition and leave by 1:00 p.m. local time, about three hours from now. ukrainian president volodymyr zelenskyy warned the city was in the grips of humanitarian crisis, suggesting ukrainian soldiers have suffered significant losses. >> translator: the situation in mariupol remains as severe as possible. just inhuman. this is what the russian federation did. deliberately did and deliberately continues to destroy cities. russia is deliberately trying to destroy everyone who is there in mariupol. >> russian strikes have continued in areas of the southern and eastern parts of ukraine. officials in kharkiv say at least two were killed, 18 injured, after a cruise missile attack. in the south, russian strikes damaged nearly a dozen infrastructure facilities in luhansk. renewed attacks on southern ukraine, a retaliation for the sinking of the "moskova" in the black sea. russia said it had shot down an aircraft carrying humanitarian aid. other military is a aid has started to arrive and the u.s. is sending additional high-powered equipment like helicopters, howitzers, and more drones. those deliveries as russian troops reportedly prepare for a ground offensive in eastern ukraine. near one up to that is likely to be in the direct path of a russian advance, hundreds of residents are seeking she will testify underground. many because they either cannot or will not leave. here's cnn's ben wedeman. >> reporter: the shelling comes early and often. with russian forces massing nearby, this is a portent of things to come. firefighters brave the threat of shelling, but few others brave the streets. -for those who haven't fled has moved underground. to stuffy shelters where safety trumps comfort. around 300 people call this temporary home on the grounds of a sprawling chemical plant. maxim and wife ida tried to keep their 7-month-old distracted. they're recent arrivals, having fled their home ten days ago. maxim shows me cell phone pictures of the cellar they hid in before coming here. dis disabled, tatiana stays in bed most of the time. she'd prefer to be home. "there's no electricity no cell phone signal, no water, no gas, everything is shaking from the bombing, the windows are shattered." >> for example, these examples. >> reporter: tamara tutors her grandson, timor. a retired english teacher, she's been here more than a month. >> a lot of people can't leave this place because of problems with health and they don't have enough money to leave and go other places. they have to stay here. >> reporter: 73-year-old vassily struggles to move about the shelter. he's not leaving town. "i was born here, and i'll stay here," he says. nearby, tanks and an oil refinery burn after a russian strike. not the first time it came under bombardment. the shelling here comes early and often. ben wedeman, cnn, eastern ukraine. everyday operations and overall control over the functional nuclear power plant may have returned to normal, but radiation levels around the site have not. ukrainian officials say they are now abnormally high. in particular, in an area known as the red forest, a four square mile exclusion zone around the plant where radioactivity has remained extremely high for four decades after reactor number four exploded, causing the world's worst nuclear accident. when russian soldiers took control of the site in the first week of the invasion, they unwittingly decided to dig trenches and defensive positions for tanks in the red forest. 90% of the radioactivity in the forest is concentrated in the soil and is called the red forest because when that reactor exploded, the trees burned from the inside out, hence, it was red. more on that in a moment. aid group world central kitchen says one of its partner restaurants has been hit by a missile attack in kharkiv. at least four staffmembers were injured, taken to hospital. the world kitchen ceo posted a video to twitter describing the horrific scenes after the attack. >> less than 24 hours ago i was standing right here, picking up meals for the wck team, meeting staff. not too long ago, a missile hit here. as you can see, tremendous amounts of damage. still a fire in the building there. right here is the kitchen area. it goes back. a lot of damage to the kitchen as well. a number of staff were wounded. they've at the hospital right now. nobody was killed in the restaurant, but we are told one person was killed in this strike. this was a big hit, as you can see. over a dozen cars burned out all around me. pieces of cars in a tree here. just a tremendous amount of carnage left behind for no reason. >> world central kitchen was founded by celebrity chef jose andre. it began operations in ukraine hours after the fighting began in february, so far serving 250,000 meal is every day. kim brunhuber at cnn's world headquarters in atlanta, kim? >> thanks so much, john. north korea claims it's taken a new step to boost its nuclear capabilities. south korea says pyongyang fired two project tiles saturday that fell east of the korean peninsula. north korean state media describe them as a new type of guided weapon that will improve the nation's tactical nuclear ability. will ripley has more. >> reporter: the grand finale of north korea's biggest holiday celebration, the country launched a new tactical guided weapon observed by its leader kim jong-un, a show offers to to mark the 110th birthday of the country's founder and kim's grandfather, the late kim il-sung. the show in the sky followed an extravagant parade on the ground. friday, kim and his top aides, including sister kim yo jon, watched performers pass by. no tanks, missiles or other military hardware as showcased in the past. this latest launch not entirely unexpected by experts after the country conducted a powerful intercontinental ballistic missile test in march. though some experts now question north korea's claim the launch in march was a new missile, saying it was actually an older model. the pentagon has also expressed concern pyongyang is preparing for a possible underground nuclear test for the first time since 2017. in a new year's speech, kim praised military advances but mainly spoke about domestic issues like food shortages made worse bet country's self-isolation during the covid-19 pandemic. last month the united nations warned more than 40% of north koreans are food insecure. the new launch, an old tactic by the rogue nation, trying to deflect from the problems that have persisted in the country even before kim came to power. and in another made for tv moment, kim bestowed the gift of a luxury apartment earlier this week to longtime news reader ri chun hee, given a vip tour of the flat. kim has a plan to build 50,000 new apartments in pyongyang over the next five years. this building like so mitch else in north korea is reserved for the elite. more evacuations took place saturday in ukraine, but some of them were put on hold because of the constant bombardment. we'll have an update after the break. as millions escape the fighting in ukraine, some have no idea where they're headed. we'll take you to a train station in poland refugees a chance to figure out w what com next. ♪ to bare my skin ♪ ♪ yeah, that's all me ♪ ♪ nothing and me go hand in hand ♪ ♪ nothing on my skin, that's my new planan ♪ ♪ nothing is everything ♪ achieve clearer with skyrizi. 3 out of 4 people achieved 90% clearer skin at 4 months. of those, nearly 9 out 10 sustained it through 1 year. and skyrizi is 4 doses a year, after 2 starter doses. ♪ i see nothing in a different way ♪ ♪ it's my moment so i just gotta say ♪ ♪ nothing is everything ♪ skyrizi may increase your risk of infections and lower your ability to fight them. before treatment, your doctor should check you for infections and tuberculosis. tell your doctor if you have an infection or symptoms such as fevers, sweats, chills, muscle aches or coughs, or if you plan to or recently received a vaccine. ♪ nothing is everything ♪ talk to your dermatologist about skyrizi. learn how abbvie could help you save. - hey honey. - hey dad. that smell is eight million odor-causing bacteria. good thing adding lysol laundry sanitizer kills 99.9% of bacteria that detergents can't. clean is good, sanitized is better. ♪ welcome back. let's get a little more on the situation around the chernobyl nuclear power plant. luke harding as foreign correspondent for "the guardian" newspaper, author of "shadow state: russia's attack on the west." he joins us on the line from kyiv. luke, have the ukrainians been able to get a full assessment of how much damage was done to the plant during the four weeks or so it was under russian control? how can they still be unaware of the potential dangers of what they were doing? >> yeah, it's a good question. what we know is that about 1,000 russians were stationed at the chernobyl plant, occupying it with 50 military vehicles, digging trenches, fortifications, including in highly radioactive areas. and the ukrainian authorities i've talked to say, look, we are aware of the radiation risks, not least to the soldiers themselves. but one of the problems is that they stole all our monitoring equipment, so the full scale of the potential risk is not yet clear. what we've seen, what people i've spoken to around chernobyl have been saying, is that thousands, thousands of russian military vehicles were going through this sort of forbidden exclusion zone hourly. as part of their attempts, boomed attempt, unsuccessful attempt, to seize the ukrainian capital, kyiv. >> it seems incredible that they didn't have any kind of idea or any kind of protective equipment, knowing that this was an area of high radioactivity. it questions the preparation and training these soldiers received before they were sent on this invasion. >> yeah, i mean, that's right. i was talking to one family who had russian soldiers, they live just on the edge of chernobyl, living with them. stormed their house, stole many of their belongings. they described them as teenagers, really, from siberia who are surprised by the level of comfort that ukraine had to offer compared to what they were used to back home. i think one of the kind of themes of this war is the callousness of the kremlin, of vladimir putin's military machine. first and foremost, to ukrainian civilians who have been executed, who have been kidnapped, made to stay in cellars. also the sort of indifference to their own soldiers. what we understand is some of these soldiers who were stationed in chernobyl are now ill with radiation sickness. >> when it comes to the way putin treats the military, any word on the fate of the crew of the j""moskva"? do we know how many survived, how many lives were lost? >> that's a great question. the sinking of the "moskava" late wednesday is one of the most extraordinary episodes in this terrible and bitter war. the kremlin has not said anything. we know there were 510 crew members on board. there was video showing about 50 crew members through the capital of occupied crimea. but no word as to the fate of the others. you have to do the math. 450 missing. and you might imagine kind of presumed drowned. the lithuanian foreign minister says about 50 were rescued by a turkish ship. the details are sketchy. what we can say is this is really a huge blow, i think, to russian military pride. and also for the ukrainians, a big symbolic victory. >> also, it has enraged vladimir putin to no end, apparently. do we know what the fate of the captain has been? >> i mean, that's a very good question. there were reports from an adviser to the ukrainian interior ministry that the captain, an thole kuperin, had gone down with his ship, had been killed in the initial fire after it was struck by ukrainian missiles. when the ship's ammunition hold exploded. but there's been no confirmation of that. contrary reports suggest he may have survived. but the problem, as you perfectly understand, is the kremlin is such a secretive and opaque organization. plus it lies all the time about practically everything. it's very, very hard to get reliable information from moscow about what's really going on here. >> pretty tough questions, because these are sort of the ongoing mysteries of the day, the fate of the crew, the fate of the captain. but it's one of those stories which they kind of acknowledged it on russian state media, but boy do they bury the lead. the first mention was around midnight on state-run television. but surely this is something which russians will eventually find out about. they'll find out about the losses which have been happening here. i guess, does that happen by osmosis? how does word spread in russia that these losses are starting to mount? >> well, i mean, word doesn't necessarily spread. this is part of the problem is that the kremlin controls information. that's what the ukrainian president, volodymyr zelenskyy, describe d as an iron curtain, informational curtain. russians who get their news from state television believe the kremlin narrative, which is that ukraine is an evil state run by fascists, supported by america and the west, and that this is a special operation to liberate them. a bit like the second world war. and again, you know, some of the ukrainian families i've talked to, to talked to these russian soldiers during occupation, say the soldiers kind of repeat these phrases. so information will trickle back. you're right. i don't think it will change the massive public opinion inside the russian federation which supports vladimir putin's illegal and terrible war. >> luke, thank you for being with us, we appreciate your insights. great reporting. we feel very fortunate that you're with us the line there from kyiv, thank you. >> thank you. as russian military issues an ultimatum for all ukrainian fighters in mariupol to leave immediately, it's difficult for anyone to get out of that besieged city. less than 200 were able to evacuate on saturday due to russian bombing and also bad weather. president volodymyr zelenskyy called the situation in mariupol inhuman. 180,000 people remain there in the immediate area, which is under russian control. in addition to mariupol, evacuations in ukraine south and east continue. officials say more than 1,400 people were evacuated from areas affected by frighting on saturday. in some cases evacuations stopped because of heavy shelling, like you see here in the luhansk region. scott mcclain is in estonia where officials say they've taken in more than 30,000 refugees since the fighting began. it's not a small amount of people for estonia, it seems to be a big chunk of people. what strain is this putting on the regional system, how many more can they take? >> reporter: it is putting massive strain on resources here. this is a small country, only about 1.3 million people. you figure 30,000 refugees, that is well over 2% of the population that is ukrainian refugees right now, or put a different way, 1 in every 44 people you run into in this country is a roouken refugee. so they are struggling to find places to house them. earlier this week we went on a cruise ship where more than 1,000 people are staying because the government thought that that option was a lot cheaper than housing people in holtz in the city. so they will be there up to four months. after that they're expected to go out on their own, with still some help from the government. i asked the minister responsible for refugees whether there were limits to the generosity of this country. she said, given the brutality, given the desperation we're seeing in ukraine, there simply cannot be. what there can be, what there is, are limits on the amount of resources that they actually have to share. how many refugees are they expecting? earlier on, at the outset of the war, they were actually figuring they would get 2 1/2 times the number they've gotten. so about 75,000. that's what they're budgeting for in the worst case scenario. they may get even more than that. what's interesting here is that early on in the war, most of the people coming to estonia were being picked up in buses, then being transported here from poland. estonia has a large russian-speaking population, so there is an attractive place for a lot of people to come. it has not been an attractive place for refugees in the past. a few years ago the minister told me they got over 100 r ref refugees. for this country, that was a lot. as of late, most of the people, about 300 a day, of coming through the eastern border with russia. that is bizarre to imagine that people are fleeing to the country that is approximatelying their country, but it's the reality. yesterday we met a couple, not a couple, a pair of neighbors, who were in mariupol. they survived 40 days of bombing before they were able to get on it toward russia. in their case, it was simply a matter of convenience. for a lot of people, that is self the days. then ending up in places like estonia, decide whether to say here or find some other home in europe before they manage to get back to ukraine. >> yeah, in many ways it seems this is how many countries are standing up to vladimir putin, in a humanitarian way. scott mcclain, thank you. refugees fleeing to poland, over 2.7 million. many have no idea where to go next. cnn's selma abdelaziz reports from inside a polish train station which is now a temporary rest stop for thousands. >> reporter: this is going to be an unimaginably difficult holiday weekend. 2.7 refugees in poland. i'm at a train station that's a halfway point for many of them. they get here, and then take a look, they sit and wait. they try to figure out where they're going to go, where they're going to spend the night. many people don't have a plan, they don't know what they're going to do, they just know they're fleeing for safety. they have only what they can carry and their little ones with them. until they see where they can go. so this train station is in a way a refugee shelter. this young man has his dog with him. that's a lot of what you see here is refugee pets too. and again, when these refugees arrive here, they need help, they need support, they need assistance. let me show you another thing here. this is a medical station. so somebody needs to get some help, they can do that. that's what's offered, warm food, medical assistance, a friendly face. you have over 2 ] 7 refugees in poland, but they are not static, they are constantly moving, shifting, trying to find out where they go, what they do. that's why there's a question, how do you continue to support them? how do you give them a more permanent sense of home? salma abdelaziz, cnn, on the poland/ukraine border. you can help the people of ukraine who are in need of food, water, shelter, medicine, clothing, a new start in life, peace. go to cnn.com/impact. you'll tint a number of ways to help. african voices "maichange maker is neck. for the rest, i'll be back after a short break. ♪ ♪ ♪ ♪ ♪ ♪ the ihop rewards program is here, and it's delicious. join the international bank of pancakes and start earning pancoins toward free food. only from ihop. if you're a small business, there are lots of choices when it comes to your internet and technology needs. but when you choose comcast business internet, you choose the largest, fastest reliable network. you choose advanced security. and you choose fiber solutions with speeds up to 10 gigs to the most small businesses. make your business future ready with the network from the most innovative company. get internet and voice for $49.99 a month with a 2-year price guarantee. and ask how to get up to a $650 prepaid card with a qualifying bundle. in the united states. john vause live in lviv, ukraine. in the past 30 minutes there have been reports of rocket attacks on a suburb of kyiv. the mayor says infrastructure has been damaged, possible disruptions to water and power supplies. bringing more details as we get them. in the wasteland that was once mariupol, ukrainian fighters, the few who are still there defending the city, have been given until 1:00 p.m. local time to lay down their weapons and surrender. less than three hours from now, the russian military laid down this ultimatum in the morning demanding ukrainians abandon their weapons if they want to live. russian defense ministry claiming it shot down a military transport plane neuro december sa, still no confirmation. despite that claim, the u.s. says the first shipments of heavy weapons is in country, including howitzer cannons and artillery rounds. the u.s. military working the phones along with the pentagon to try and get along lies to speed up shipments of weapons and ammunition to ukraine. more details from cnn's arlette saenz reporting in from the white house. >> reporter: the first round of that more sophisticated and heavy-duty military assistance from the united states to ukraine has started to arrive in the region. that's according to a white house official. the plans were to send that equipment into the region and the ukrainians would pick up the military assistance at the border and transfer it into the country themselves. it is unclear at this moment whether that transfer has actually started. while the pentagon would not detail a list what was this first shipment eptails, officials has expected it would include some of the more pressing needs like howitzers and ammunition, radar systems that detect incoming fire and pinpoint their origin. this is part of an $800 million package president biden announced earlier in the week and will also include helicopters and more switch blade drones. there had been some biden administration officials who previously were hesitant to send this type of equipment into ukraine, worried it could pose a risk of escalation in the view of russia. but the ukrainians have asked for this type of weaponry and they're also preparing for a heightened battle in the eastern part of the country where the terrain is different and they need more equipment. russia is also protesting this military support that the u.s. has been offering to ukraine. sources tell cnn that russia september a diplomatic note to the state department warning of unpredictable consequences if the u.s. moves forward with supplying more military weaponry to ukraine. that raises questions about what russia exactly could do next at a time when ukrainian president zelenskyy is warping that the world should be on alert for the possible ewe of nuclear weapons by russia. the u.s. remains undeterred by russia's warnings, continuing to provide this assistance to ukraine, especially as they see an evolving battle field and are adjusting the types of assistance they're offering to the country as they're preparing for battles in the east. arlette saenz, cnn, the white house. the british prime minister has promised the uk will stop at nothing to ensure ukrainians have the resources they need to defend themselves against russia. boris johnson spoke with ukrainian president zelenskyy saturday. the two leaders talked about the need for a long dive term security solution ukraine reserve downing street says the aid will include armored vehicles action anti-ship missiles as well. ukrainian officials warned the battle for eastern ukraine would be unlike anything seen since world war ii. some military experts agree. retired army major general mark mccawley about the upcoming battle and what could be possibly decisive for ukraine's future. if advance weapons arriving now, too little, too late? here he is. >> look, any resupply of that nature is valuable. the fight that i think the ukrainians now have to focus on is the donbas region. you see that the russians are massing both in the northeast and the southern part of ukraine for that what russians consider the big assault into that territory that putin has long considered part of mother russia. so the if the ukrainians can use and simply long range artillery the 155 howitzers, valuable. not enough of them. the hip helicopters, those are the mi-17s for the purpose of mostly transport. some for delivery of that helicopter platform. everything will help. but the big key question is, how can the ukrainians, perhaps with a force anywhere between 30,000 and 40,000 present in that part of the country, can defend against perhaps 70,000, the residue of russian fores. the ability of the russians amplified by their own set up. this is going to be one heck of a very, very dirty fight. for historians, it almost appears to be something reminiscent of the battles of stal stalingrad, and interestingly and more specifically, leningrad. the sort of house-to-house fighting which is indeed bloody and gruesome and exactly what we saw in mariupol. >> we're also waiting for essentially when does this begin? this is a simple matter of timing for the russians? they need to rearm, resupply? or waiting on other factors like the weather? they want to move on firm, hard land? it's been raining, they don't want to move on muddy areas, that kind of thing? >> i think it's interesting you make reference to the mud. some have said that the mud was what restrained and constrained the russians to use the highway network, at least in the first two or three weeks of the campaign. so yeah, there's a value for any tactical commander on the ground. so perhaps that's one of the requirements that the command staff of the russian army is looking at. but more importantly, time is on the russian side. it's not on the ukrainian side. so even though we're all somehow anticipating that the attack will take place today, today being really monday -- there's no requirement on the part of the russians to move out at that point. they can wait, they can assemble their forces, they can get that necessary artillery. they're receiving resupply of their missiles and drones. they want to be set to go in and they have a campaign outlined, and that campaign is basically to terrorize and to basically destroy the remnants of the ukrainian army. any way they know how. >> this will be quite the battle of the coming days and weeks. general macaulay, thank you for your experience and insights, incredibly valuable, thank you, sir. >> thank you. word of another high-ranking russian military officer killed here in ukraine. the mayor of st. petersburg says major general vladamir frolov was killed, claiming he died in a battle with what he called ukrainian nationalists. cnn cannot confirm the circumstances of frolov's death but he would be among 15 lieutenant colonel or higher ranking officers who have died during russia's invasion of ukraine. cnn's world headquarters, kim brunhuber standing by. quite a number of senior officers to lose in two months, eight weeks of fighting? >> yeah, absolutely. i mean, interesting to see how the kremlin spins that. thanks so much, john, appreciate it. the united states is experiencing its highest inflation rate in decades. in march consumer prices soared by 8.5% over the previous year. a logjam at the u.s./mexico border didn't help. for a time, a texas policy that required enhanced drug and immigration inspections resulted in a supply chain disruption. gridlocked trucks carrying hundreds of millions of dollars of spoiled produce, the move condemned as political theater and texas governor abbott reversed the order. home construction is suffering in the u.s. camila bernal looks at that. >> reporter: when he quoted this home renovation project in april 2021, he estimated the cost to be $600,000. but with the increase in costs in almost everything related to homes -- >> new floors, new baseboards and doors -- >> reporter: this general contractor is now dealing with very different numbers. >> we're looking at $120,000 to $150,000 more. $750,000 now, just a year apart. >> reporter: according to data from the bureau of labor statistics, inflation for construction materials has increased over 23% in the 12 months since march of 2021. metal products 36%. lumber 21.8%. plastic 35.2%. >> the supply of wood, used to be $25. now you pay almost $50. >> reporter: these price hikes are impacting new construction and existing homes. >> if the cost of producing housing goes up, in order for that housing production to be profitable you need to charge higher rent or else you're going to lose money. and that's an important source of where our inflation numbers are coming from. >> reporter: richard green, an economist and expert on housing markets, believes house prices will fall next year and thinks rent will continue to increase, but not as rapidly. in terms of materials -- >> geopolitical issues have an enormous impact on the supply chain, which has a big impact on the cost of materials. so you need to be able to do a forecast of how the world is interacting with itself. do a forecast on what's going to happen to material prices. >> reporter: to deal with the unknown, he's had to adjust his budget, take a loss, or pass it on to his customers. >> we have to adjust it. otherwise, i'm not going to make money. >> reporter: camila bernal, cnn, los angeles. tracking another weekend of gun violence here in the u.s. police in pittsburgh, pennsylvania, are looking for the person who shot as many as ten people on saturday in the east allegheny neighborhood. authorities tweeted at least three of the ten victims were critically injured urging people to stay out of the area. no word yet on motive. today is the culmination of holy week in the christian world. pope francis will soon begin his sunday easter mass. we'll get the latest details after the break. also cnn speaks to a ukrainian rock star who's using his voice to help those civilians forget about the horrors of war. i'm jonathan lawson here to tell you about life insurance through the colonial penn program. if you're age 50 to 85, and looking to buy fe insurance if on a fixed budget,5, remember the three ps. what are thehree ps? 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>> reporter: happy easter to you. yes, clearly a cloud has been cast over these easter sunday celebrations because of the war in ukraine. as you mentioned, pope francis will shortly begin celebrating the easter mass in st. peter's square. this is the first time he's been able to do that in the square in front of a crowd since the covid pandemic began. later today, at noon, he'll deliver his traditional address to the city and the world. it's usually a 360-degree review of the global situation. there we would expect the pontiff very directly to address the crisis in ukraine and to repeat his denunciations of the war. but even without speaking, the pope managed to make a statement friday night, good friday, during the traditional way of the cross ceremony. at one point, he entrusted the cross to a ukrainian and a russian woman, both nurses, they're personal friends here in rome. that brought a lot of protests from ukrainians who saw it as a kind of moral equivalence between the aggressor and the victim, but the pope clearly saw it as an important statement about reconciliation and the possibility of peace and friendship despite the conflict. so very busy. as you say, somewhat bittersweet easter here in rome, tkim. >> we'll be watching throughout the day. musicians and artists in ukraine are using their skills to come and encourage their fellow citizens. we'll meet one rock star using the power of song to ease refugees' minds. the sleep number 360® smart bed is on sale now. why choose proven quality sleep from sleep number? 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one by one, singers and musicians in ukraine have defied the russians by using their talent to unite a nation and soothe a terrified population. >> we love singing. >> reporter: the most famous one is vietoslav barotchuk, known as s s slava, known as the ukrainian bruce springsteen. he could have chosen to flee the country. instead, he decided not only to stay but to visit terrified civilians like these people seeking shelter in a kharkiv subway station. you went to a subway station by yourself where there were many people, and unannounced, and you started singing. why did you do something like that? ♪ "the whole idea is to help people forget, even if it is for a fleeting moment about the horror of war." >> imagine somebody like me comes and says, hey, guys, everything is fine, let's sing together, let's have some fun. >> forget for a moment that we're at war? >> yeah, this is it. ♪ >> reporter: and so he's visited hospitals like this one in mand troops on the front lines. songs are his answer to russian bullets, he says. empathy and good will are more powerful than any bomb. >> ukrainians are one of the most -- the freest nations in the world. we have this gene of freedom in our dna. that's why probably many americans instinctively, intuitively support us now. >> reporter: in the streets people greet him and ask for pictures. he happily obliges and takes the opportunity to give everybody the same message. "everything will be all right." which happens to be the title of one of his songs. his most popular nowadays. ♪ "i hope that everything is going to be all right for everybody," the song says, "our time is going to come." rafael romo, cnn, lviv, ukraine. no surprise a man who spent nearly a year in the cutting-edge realm of outer space is using new technology to raise money for ukrainian relief. former u.s. astronaut scott kelly raised $500,000 by selling nonfungible tokens. nfts, as they're nicknamed, are one-of-a-kind assets, a kind of original digital file. in this case, 3,300 images of kelly in space created by the content studio orange comet. they sold out at auction in one day. proceeds are going to global empowerment mission, which helps the victims of the war in ukraine. i'm kim brunhuber. i'll be back in just a moment with more news. please do stay with us. right before mike decided to say yes... he learned he had ibs-c and could treat it with linzess. it explained why his constipation with belly pain wouldn't go away. and why the belly pain, discomfort, and bloating couldn't be kept at bay. after mike learned his symptoms were signs of a chronic condition, his doctor helped him make a decision. and that's why he said yess to adding linzess. linzess is not a laxative. it helps you have more frequent and complete bowel movements. and is proven to help relieve overall abdominal symptoms-belly pain, discomfort, and bloating. do not give linzess to children less than two. it may harm them. do not take linzess if you have a bowel blockage. get immediate help if you develop unusual or severe stomach pain. especially with bloody or black stools. the most common side effect is diarrhea, sometimes severe. if it's severe, stop taking linzess and call your doctor right away. other side effects include gas, stomach area pain, and swelling. could your story also be about ibs-c? talk to your doctor and say yess to linzess. learn how abbvie and ironwood could help you save on linzess. this is cnn breaking news. >> hello and welcome to all of you watching us here in the united states, canada and all around the world. i'm kim brunhuber. we begin with reports of renewed attacks near ukraine's capital. the mayor just east of kyiv says the city was hit by a rocket attack today. this comes as a deadline looms in the besieged southern city of mariupol. with russian troops now in control across much of the city, they're demanding all remaining ukrainian forces lay down their weapons and leave by 1:00 p.m. local time. that's about two