public transportation mask order is not in effect right now at airports across the country. our aviation correspondent pete monoteen joins us with more. what did the judge say in their decision? >> reporter: anderson, this is so interest because this is the first time i'm at reagan national airport. i've done hundreds of live shots throughout the pandemic wearing a mask. this is the first time we're not wearing a mask because of this federal judge' decision, katherine kimball. she was appointed by president trump. she says this rule is essentially void, that the cdc's authority doesn't go over. this is pending a federal review. it came by surprise and was very abrupt. we know the mask mandate was slated to end today. it got sfwextended by two weeks. airlines quickly pushed back against that and they said that this is something that is holding people back from traveling. the history here, back in february 2021 the biden administration ordered this to be put into place extended again and again. now we know the federal transportation mask mandate, one of the last big mask mandates to remain in place no longer the law of the land, anderson. >> so just to be clear, obviously you can wear a mask on a plane if you want, but are masks still required on airplanes? >> reporter: this is what we're hearing from airlines, major airlines like united, delta, alaska airlines have all essentially said now they will follow the order from the judge here, and they say that masks are essentially optional not only for passengers, but also for workers. about 70% of all unruly passenger incidents, according to the latest faa data, have to do with masks. it's employees who've been on the front lines of this. some will wear a mask regardless. we do know from some studies they say that being on an airplane because of the confined air is one of the safest places you can be from coronavirus. >> are people around you in the airport wearing masks or not wearing masks? >> reporter: i'm seeing about, oh, maybe 40%, 30%, a third not wearing masks right now. you know, we heard from folks throughout the network, people traveling today in denver and lax, that some people didn't initially get the memo. frankly, the biden administration didn't really get the memo right away. they were trying to figure out whether or not this would apply to everyone or something that would be more focused, with immediacy or it would take place later on. so we're seeing that some people are not wearing masks, myself included. it's legal now. >> we'll have more on this later in the program. i want to go to ukraine now. president zelenskyy says that russians have begun a long-anticipated battle for the eastern portion of the country. >> translator: russian forces have started the battle for donbas they have been preparing for a long time and considerable amount of the russian forces are concentrating and focused on that offensive. no matter how many russian servicemen they're bringing into that area, we'll keep on fighting and defending and we will be doing this daily. we will not given anything what is ukrainian. we don't need anything what is not ours. >> his chief of staff called this a second phase of the war, one where the russians forces have regrouped and resupplied. u.s. defense official tells cnn he believes russia has been able to add 11 battalion tactical forces since last week. that would make it a total of 76, which means tens of thousands of soldiers. according to u.s. officials, the russians will try to apply the lessons they learned from its failures so far, whether they can or not, unclear. those failures on display as images of the sunken warship came out today. the moskva has marks from a missile strike and a large plume of black smoke. russia had essentially blamed a storm and a fire on board the ship for the loss of the black sea flagship. western attacks in lviv two months into the war now recording its first deaths. we report tonight from the west and east of ukraine. clarissa ward is to the southeast of the capital, and matt rivers is in lviv where we begin our coverage. >> reporter: the black smoke made a column to the sky, so we chased its source. when we arrived, flames shot out of two buildings as firefighters rained down water from above. ukrainian officials say at least four missile strikes across lviv on monday morning, three of which hit military infrastructure sites. another hitting just across the railroad tracks behind me. let me show you the impact crater from where ukrainian officials say that russian missile struck. military and first responders on the scene quickly thereafter. the explosion destroying an auto repair shop and a dozen or so cars lined up outside. the explosion shock waves blew out windows more than 500 feet away. maria showed us her building's damage. i got very scared, she says, and i was scared the whole building was going to fall down. i don't know whether i should stay here in this building or if i should move to poland and flee for my life. overall the four strikes across the city killed at least seven people and injured about a dozen, including a child. here, scenes from a hospital treating victims of the strike who survived. other victims in body bags outside the repair shop where they worked. the owner says they were just getting ready to open up the business for the day when the missile struck. four of his employees, he says, were killed and several others were sent to the hospital in what appears to be an obvious nonmilitary target. it begs the question, was this a mistake by the russian military? or was it place targeted on purpose? the owner told us the only vague connection his shop had to the military was volunteering time to make sure cars being sent to soldiers at the front were in good shape. for him, this is just another example of russian military brutality. he says they destroy our infrastructure, they kill people, they want to kill and destroy the ukrainian nation. >> matt rivers joins us from lviv. cla how have these strikes impacted the sense of security in the city today? >> it had been weeks since there was a missile strike here in lviv, and these strikes on monday morning were the first time that any civilians were killed as a result of a russian missile strike. so it has certainly shattered the calm we had over the weeks. you heard how common air raid sirens are. they happen all the time and most of the time people don't even really register them. they keep going on. yet when we were at the scene of that air strike today, there was another air raid siren that went off while we were there. everyone who was at that scene, the onlookers who had come to look at the remnants of those two buildings we showed you, everyone that was there took off, started running heading towards air raid shelters. that is a scene you would not have seen in lviv just one day before. so clearly these strikes have people here more on edge and perhaps rightly so. >> clarissa, you're to the southeast of the capital, kyiv. explain what you've been seeing and the importance of denipro right now. >> so there were two missiles that struck here overnight on the outskirts of the city. this is a city of roughly 1 million people. it's also become the place that many of those who have evacuating the hardest-hit areas in the east of the country are flocking to for some semblance of security. we've been out for the past few days visiting towns and cities in the so-called donbas region, which is really the center of russia's new offensive. what we found and saw were places that have been getting pummeled by artillery as russians appear to be sort of trying to soften up the territory ahead of this offensive. we also saw, though, that for many people, evacuation was simply not an option. this part of the country is much poorer than the capital, kyiv. we haven't seen the same logistics and infrastructure in place in terms of trying to evacuate people. a lot of people we spoke to said we would like to leave, but it's simply not possible. we don't have the money, we don't have anywhere to stay. and of course they're also very concerned about leaving their homes behind, not just about the prospect of increased bombardment, but also they've seen what happened in the north outside of kyiv and kchernihiv, homes ransacked, all their possessions were stolen. so there's more of a reluctance at the moment for people to leave their jimenez even though they know things are only going to get much worse, anderson. >> with ukraine saying the second phase of the war has begun, every military strategist has talked about what that battle may look like in the east versus what we've seen in kyiv and places previously. can you talk about that? some have said it's going to be much more of a sort of standard tank battles over large areas of land. >> reporter: yeah. i mean, it's a dramatically different battlefield here. when you drive around these areas, these are vast, flat plains and fields. there isn't the same amount of cover for ukrainian forces. a lot of their successes in the north were launching ambushes, taking part in skirmishes, the guerril guerrilla tactics that aren't applicable here. ukraine's top security official said russian troops were trying to push in on the front line in kharkiv, luhansk, and donetsk regions today. they were only successful in one town and a smaller town that ukrainian authorities have yet to name. but the fear for ukrainian forces, anderson, is that they are now much further away from their logistics and resupply hubs. and so getting weapons to these soldiers on the front lines is more complex. we've seen russia already targeting the railway systems in various parts, connecting the east to the west. that's obviously a major way to get weapons to the front line and we're hearing ukrainian forces imploring again and again, listen, we need heavier weapons and serious long-range artillery, and we cannot deal with a situation in which those weapons and that ammunition are not flowing freely and constantly being replenished. >> matt, mariupol is a city which we've been watching, tried to defend itself, and remain standing. a ukrainian commander called it hell on earth there. what more are you learning about the battle there? seems like russian forces h have -- are in a position now where they may be able to or at least it's possible they could take the city finally. >> reporter: yeah. anderson, i mean, that's kind of similar to what we've been saying for a while now. it has seemed that mariupol has been on the brink of falling to russian forces for at least days now, if not weeks. yet what we hear from the ukrainians is that they're simply refusing to give up. it was over the weekend on sunday that russia laid down an ultimatum saying any remaining ukrainian resistance fighters in the city needed to lay down their arms and surrender by 1:00 p.m. local time. that didn't happen. the ukrainians flat-out ignored that and said they would continue to fight and that happened into monday. we actually managed to speak to a police captain who is actually from mariupol. he is inside the steel plant where i think this resistance has really centered over the past couple days if not past couple weeks. and he told us about the sense of urgency, the sense of commitment to continuing the fight against the russian troops. he said there are no plans for the fighters inside the steel plant to giving up anytime soon. interestingly, he also talked about the civilians that are also inside that steel plant. he said in total we're talking about 1,000 women, children, elderly people who have taken shelter alongside the fighters continuing to fight. you have an ongoing siege with horrific fighting between both sides, but trapped in the middle of it all is a civilian population that has been without food, water, medical supplies for an incredibly long time. that's why i think you hear these words hell on earth. you had these civilians that zp desperately need to get out but for days no humanitarian corridors have been opened, no evacuation routes given for those people, which means this horrific situation in mariupol will likely continue. >> clarissa, the luhansk region military governor said there are, in his words, no safe places left in the region. are people able to evacuate at this point? >> reporter: it's tricky, anderson, because the question is how do you evacuate people often from these small villages that are coming under fire, the roads are often impassable, they're heavily mined in many cases as well. as i mentioned before, a lot of people are really reluctant to evacuate because they are so frightened that they will never be able to return to their homes if they do so. in addition to that, you have the issue of the elderly, the vulnerable, as matt just mentioned. a lot of the people who are still trapped in mariupol are people who simply didn't have the withdrawal, the means, the resources, and the support to get out safely. we met an 86-year-old woman who was living in the town of abdiv caon her own in a wheelchair, no heating. she had no windows. they have been blown out from the force of blasts nearby, no running water, very as opposed toty elect-- electricity. we were able to work with volunteers to get her out and get her to a nursing home and the safety of the city where we are, but what you have to understand is there are so many more lydias and others like her who are out there who don't have the support, they don't have the resources. as i mentioned before, the infrastructure here is just not in place in the same way that we saw it being organized so effectively in the suburbs around kyiv earlier on in the war. >> clarissa ward and matt rivers, appreciate it. be careful. more on the intense fighting in ukraine tonight. a kitchen in kharkiv that had partnered with the humanitarian relief organization world central kitchen suffered a missile strike. we'll talk to the founder of that organization, jose andres, at the moment. we'll return to our other breaking news story with our medical team weighing in on the federal court order striking down the travel mask mandate in the u.s. 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[lazer beam and sizzling sounds] ♪ ♪ ♪ we believe there's an innovator in all of us. ♪ that's why we build technology that makes it possible for every business... and every person... to come to the table and do more incredible things. i love being outside. my eyes...not so much. until i found new clear eyes® allergy. just one drop means all day relief, and my eyes...feel amazing. new clear eyes allergy. your eyes deserve the best™. russia's air campaign and a critical part of its second phase of the war extends to other parts of the country. kharkiv, a missile strike hit a kitchen partnering with world central kitchen. it's the charity founded over a decade ago by chef jose andres. his ceo nate muke made this video after the strikes occurred. >> hey, guys. i'm outside one of our restaurant partners here, less than 24 hours ago i was standing right here picking up meals for the wck team and meeting vera and the 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 that goes back. there's a lot of damage to the kitchen as well. >> four staff pebzmembers were injured in the blast. three of them are recovering. today world central kitchen posted another picture from just outside kharkiv showing them at work providing hot meals and produce. i spoke with jose andres about the attacks. good to see you. first of all, how is everybody that's working in the facility that was struck in kharkiv? >> we were able to see the video that my friend did with the people that were wounded. four team members of one of our restaurant partners, they experienced -- they have some bruises. let me tell you what happened today. they began putting -- that was good to start being used again. they are putting that equipment in a new facility. tomorrow those men and women of that -- will be cooking. the ukrainian people are fighters. they -- we're here for our people and we'll keep fighting this war in the only way we know, which is feeding people. we are food fighters. >> it's amazing that they are going back to continue the work. did you ever think -- look, you worked all over the world and you worked in ukraine now for a while since the beginning of this thing. did you ever think something like this could happen? that a restaurant you partner with would be hit? >> i mean, understanding the moment we came to ukraine, we knew that something like this could happen. i mean, we need to understand one thing. we have more than 400 restaurant partners all across the ukrainian operation. many of them are inside ukraine. we are in more than 80 cities. we are delivering food in more than 2,000 different points each day. many of them inside ukraine. we're in kharkiv, in yarkov. i was in bucha within hours being liberated. we are feeding inside kherson, which is under russian occupation and we have restaurants doing the best they can to take care of the -- [ no audio ] -- very much. i will not say in the front lines, but even beyond the front lines. we know the risk we're taking, but one thing is very clear. the ukrainian people are fighting on behalf of not only of ukraine, but on behalf of freedom of democracy and liberty. at least we can be doing is being next to them. so we know the risks we took. world central kitchen is a world ofrmgts this is the first time we're in about a real war zone, and we're trying to make sure everybody is safe. but the most important is that we're going to be next to the people that need a plate of food, the children, the women, the elderly. that's what we're trying to do every single day. >> it's got to be incredibly hard to assess where you can go and then also how long you can stay in an area when you have to pull out depending on what is happening on the battlefield. >> obviously it's something, like, we keep assessing. i will say even hour by hour. but obviously i'm going to be myself in the north and kharkiv make sure the racing operation sound. we have a good operation. we see everything right now is moving into obviously the donbas area. we see that dnipro is becoming like lviv, a lot of refugees arriving in the donbas. we need to make sure the operation just keeps growing to cover the local needs one meal at a time. so yes, the situation is very fluid. we keep -- obviously, this has been going on for more than 52, 53 days we've been here from the 12th hour after the russian invasion began. we are going to be here in the long run next to the ukrainian people making sure that food will not be one of the issues they need to be thinking of. we cannot cover everything, but we are next to the ukrainian people making sure that we're reaching the places that are in the most need. >> chef jose andres from world central kitchen, as always, thank you. what one ukrainian commander calls hell on earth. the latest in the besieged port of mariupol, next. tateter totting, cold or hotting. mealin', feelin', pie-ing, trying. color your spread. upgrade your bread. pair it. share it. kraft singles. square it. bipolar depression. it made me feel trapped in a fog. this is art inspired by real stories of bipolar depression. i just couldn't find my way o of it. the lows of bipolar deession can take you to a dark place. latuda could make a real difference in your symptoms. latuda was proven to significantly reduce bipolar depression symptoms and in clinical studies, had no substantial impact on weight. this is where i want to be. call your doctor about sudden behavior changes or suicidal thoughts. antidepressants can increase these in children and young adults. elderly dementia patients have increased risk of death or stroke. report fever, confusion, stiff or uncontrollable muscle movements, which may be life threatening or permanent. these aren't all the serious side effects. now i'm back where i belong. ask your doctor if latuda is right for you. pay as little as zero dollars for your first prescription. ♪ ♪ ♪i'm so defensive,♪ ♪i got bongos thumping in my chest♪ ♪and something tells me they don't beat me♪ ♪ ♪ ♪he'd better not take the ring from me.♪ liberty mutual customizes your car insurance so you only pay for whatchya... line? 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>> it's partly geographic, partly streak. look, mariupol is a coastal city which lies smack between the area of donbas, which is controlled by russian-backed forces and by russia itself, and crimea, which is annexed by a bit of ukrainian territory that's been annexed by russia. if russia wants to establish a land corridor between those two russian-controlled areas, it has to take mariupol. that's one of the reasons why the ukrainian forces have been so determined not to back down and to defend that patch of coastal territory. unless that land corridor is established, vladimir putin is not going to be able to turn around to the people of russia and say, look, you know, we have achieved some kind of victory in what he calls his special military operation in ukraine. he wants to achieve a victory like that before may 9th, which is a very important day in russia. it's the day of the victory day parades where they celebrate russia's military prowess and commemorate the end of the second world war in the country. he wants a victory by then, and that's why there's this big push under way right now, i think, to establish control over donbas and to really push out the last remnants of resistance from malpoll as well. >> matthew chance, appreciate the reporting. joined by james marks, cnn military analyst. general marks, if mariupol comes in the following days, weeks, what does that mean for ukrainian psychologically? if you want to connect the two parts, you need to control mariupol. >> yeah, the very first step for russia to declare some type of an immediate victory, bearing in mind they won't be done if they can secure mariupol and, sadly, it looks like it's inevitable. tactically from a military perspective it's important to grab mariupol because as the russians turn to the south and west and get their hands on odesa, that's the ultimate goal here. but you have to grab mariupol. it also allows putin to go back to his population and say, look, we've expanded beyond the donbas, we have moved into ukraine, we now have a handle on mariupol, and we're continuing our offensive exactly as matthew laid out. and i have to take the opportunity here, anderson. looking at that film of those absolutely beautiful children underground, i mean, i was blessed -- we've been blessed over this easter weekend. i spent it with three of my five grandchildren who look like those kids. it's absolutely heartbreaking. >> it's sickening to see children in this situation. >> it is. >> russian forces according to president zelenskyy have started today the battle for donbas. what does that battle look like? obviously, you know, we heard a lot about it being much more heavy artillery, tanks over long, open plains. some people compared it to a world war ii-style battle. >> it's going to be far more conventional than what we've seen to date up in the kyiv area and certainly kharkiv where the russians tried to walk into issue terrain and got completely waxed. this will be open terrain, and it will come in phases. the russians are not unlike the soviets in that when you see artillery, you can't get enough of it from the russians. they will pound and pound and pound and try to shake the conditions for the movement of their heavy units, which is their tank units and their infantry units. that's going to come. the ukrainians have some capabilities they've demonstrated to engage tactically with the russian forces in these fights, these tactical engagements. there's very little they can do to reach deeply to try to conduct what's called counterfire against these artillery and rocket barrages, which are happening right now. ukrainians have the ability to strike deep, and that's how you shake the engagement. you can win tactically in front of you, but you must shape and you must start to atritt what the enemy can bring forward to reinforce that next echelon. ukrainians know how to do this, they just have to get about the business of doing that. up next, more on our other breaking news this evening, including new statements from airlines about the court's ruling overturning mauvgsk mands for planes andnd other transportation. do you think any of us will look back in our lives, and regret the things we didn't buy? 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>> honestly anderson, i'm not surprised by what happened today because it was only really a matter of time before the biden administration lifted the mask mandate themselves. i think it probably would have happened in the next two weeks. yes, ba.2 cases are rising, but we're not seeing a concurrent rise in hospitalizations, which is really good. and i think this actually signals a broader shift by the biden administration away from mandates and top-down decision-making by the government, moving to empowering individuals for the choices that they have. and so in this case, people should remember just because you're not required by the government to wear a mask, that doesn't mean you shouldn't wear a mask. i'm definitely going to be masking when i go on planes, trains, and airports. if you're masking, wear an n95 or equivalent mask because you have to protect yourself. one way masking works really well even though others aren't masking. >> the manipulate was set to expire in two weeks anyways. dr. wen was indicating and it was unclear at best it was going to be renewed. what do you think happens next year? do you think this is just a done deal? >> it looks like it's a done deal. i mean, the administration rather than saying they were going to appeal right away and try to get a stay, they basically acquiesced in the decision, and it may be a good idea to get rid of the mandate now. but this is why we have medical professionals in the government. this should be up to the people who have some expertise in this area, not to federal judges who are just pushing a political agenda that they don't like masks. that's the legal issue as i see it. i certainly defer to the experts on whether it's a good idea or not, but it should be left up to the experts, not federal judges. >> dr. wen, for travelers out there who have small children, can't be vaccinated or hhigh ri category, what's your advice for them if they want to travel? >> it's really difficult for parents with little kids who are not yet able to mask. frankly, that was a problem even when the mask mandate was in place are because people were wearing flimsy cloth masks or wearing them around their neck and it wasn't doing much good anyway. for people who are able to mask, make sure you're wearing an n95 or kn95 mask. if you're wearing a mask, wear one that's really protective, not a flimsy cloth mask. also, wear a mask during the times that are the highest risk, that is, boarding the plane and dep deplaning because that's when the ventilation is not turned on. make sure your vaccinated and boosted, of course, but if you're going to visit someone who's vulnerable, take a test before seeing them that day. >> good advice, dr. wen, jeffrey toobin as well. thank you so much. eight people were killed, dozens more injured after a violent weekend across the country with shootings disrupting gatherings in a mall in an easter celebration and at parties. our randi kaye has details next. ♪ luncnchables! bubuilt to be eaten. 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[ sound of gunfire ] >> reporter: in pittsburgh, a massive search for what police believe are multiple suspects, this after an early morning shootout on easter sunday killed two people and injured 13 others. officials say it happened at an airbnb rental during a large party with as many as 200 people, many of them underage. >> here we are easter, and we have multiple families, two that won't see a loved one. >> reporter: police say more than 90 rounds were fired, prompting some party goers to jump out the windows. many suffered broken bones and laceration. also on easter morning, a mass shooting in furman, south carolina, about 50 miles north of savanna, georgia. at least nine people were injured, according to the south carolina law enforcement division. the shooting happened during an easter party. >> it was scary and we just tried to get to safety. we didn't know where the shots was coming from. we just trying to get to safety because everybody was running and screaming. >> reporter: no suspects have been identified. and this wasn't the only mass shooting in south carolina this weekend. the other took place at the columbiana center ball in columbia on saturday. >> we started running and falling all over the place. everybody was falling and running over top of each other, pushing and shoving. >> reporter: police say 14 people were injured in that shooting. nine of them struck by bullets. the others were hurt attempting to flee. police say the shooting started around 2:00 p.m. and that they believe the shooters knew each other. >> this was not a situation where we had some random person show up at a mall to discharge a firearm and injure people. >> reporter: the victims range in age from 15 to 73. two men are under arrest, including a 22-year-old man for unlawful carrying of a pistol, according to columbia police. they are still looking for another man, who also may have fired his gun at the mall. about 900 miles north of there, another shooting in boston's chinatown neighborhood. the gunfire early sunday morning left two people critically wounded. >> both of these males were transported to local area hospitals and both are currently listed in critical condition with life-threatening injuries. >> reporter: police say three president ises were taken into custody after the vehicle they were fleeing in crashed and that a gun was recovered at the crash site. and out west, a weekend house party in las vegas turned violent, police say, leaving two adults and two minors shot. they are still searching for the gunman. >> it's scary. it's a little scary, very close to where we live. >> reporter: and getting closer to , too close, for so many. since january 1st, 151 people have been killed in shootings in this country, more than 600 hurt. that's according to the gun violence archive. randi kaye, cnn, palm beach county, florida. coming up next, as you may know, i was out last week with covid, which one of my kids got as well. luckily he experts to talk about 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(camera shutters) or the places we didn't go. ♪ ♪ i'm happy to be back working tonight, thankfully feeling fine after being home for a week with covid. my son, wyatt, also got the virus. aside from the sniffles and the fact he doesn't know how to bloez his nose, which is cute, he's doing well. our experience is not unique. many families are trying to navigate the virus, work, child care, you name it. i learned a lot, but i also had a lot of questions, so while i was home and sick, made it the topic of this week's episode of my "parental guidance" show on cnn plus. here's a bit of it. >> my oldest is not yet two years old. so, you know, there's no really explaining to him why he's, you know, coughing. and thankfully, his symptoms aren't that bad. but how do you, with kids a little older, how do you explain to them what's going on? >> it's important to use simple, honest language. we have a tendency to want to shield our children from the scary things going on in the world. but the reality is we're all living through this. but having a plan ahead of time, just what are you going to say to your children. daddy is sick right now and he can't be in the same room as you. or we have to wear masks right now because we're sick. >> the episode will be available on cnn plus on wednesday. i hope uk check it out. the news continues. let's hand it over to laura coates and jim sciutto in coates and jim sciutto in ukraine. -- captions by vitac -- www.vitac.com anderson, thank you. this is cnn tonight. i'm jim sciutto, along with laura coates. there is big news this evening. the state department is considering labelling russia a state sponsor of terrorism, a