hello and welcome to bbc news. the ukrainian government has urged the united nations to do more to bring those trapped inside the city of mariupol to safety. it's urged the un secretary—general, antonio guterres, to intervene immediately. he's meeting president putin in moscow next week and then travelling on to kyiv. on saturday, there'll be another attempt to establish humanitarian corridors out of the besieged southern port city of mariupol, which russian forces have been trying to fully capture for several weeks. simonjones has the latest. under attack, ukraine's second city, rq. russia was much assault is intensifying. the dangers are clear. despite the destruction, some residents are determined to stay. we destruction, some residents are determined to stay.— determined to stay. we are auoin to determined to stay. we are going to fight- _ determined to stay. we are going to fight. to _ determined to stay. we are going to fight. to fight - determined to stay. we are going to fight. to fight as i going to fight. to fight as long as it is needed for victory. long as it is needed for victory-— long as it is needed for victory. long as it is needed for victo . , . , , ., victory. fresh attempts are bein: victory. fresh attempts are being made _ victory. fresh attempts are being made to _ victory. fresh attempts are being made to get - victory. fresh attempts are being made to get civilians| victory. fresh attempts are - being made to get civilians out of mariupol, 100,000 people are still thought to be trapped there. ukraine's deputy prime minister says the evacuation will only succeed with the help of the un. translation: ., , translation: un right now 'ust observes what is i translation: un right now 'ust observes what is happening h translation: un right nowjust observes what is happening in i observes what is happening in mariupol, and if the world unites and demands that this evacuation happens, only then it can happen. to evacuation happens, only then it can happen-— it can happen. to try to halt the fighting. _ it can happen. to try to halt the fighting, the _ it can happen. to try to halt the fighting, the head - it can happen. to try to halt the fighting, the head of. it can happen. to try to halt| the fighting, the head of the un will travel to moscow on tuesday for talks with president putin before going to gf to meet president zelensky on thursday. there is a mood of urgency —— kyiv. these satellite images so a second mass grave on the outskirts of mariupol. his family who have made it to safety say they walked for five days to escape the conflict. translation: ~ translation: we will never for: et translation: we will never forget what _ translation: we will never forget what happened. - translation: we will never forget what happened. we i forget what happened. we cannot. we need to keep our spirits up and raise our children.— spirits up and raise our children. ,, . children. russia says it has captured — children. russia says it has captured an _ children. russia says it has captured an arms - children. russia says it has captured an arms depot. children. russia says it has captured an arms depot in | children. russia says it has i captured an arms depot in the kharkiv region, containing thousands of tons of ammunition. the uk says it is expanding military support to kyiv by giving poland tanks to replace those warsaw is sending to ukraine. replace those warsaw is sending to ukraine-— to ukraine. we're looking what we can do _ to ukraine. we're looking what we can do to — to ukraine. we're looking what we can do to backfill_ to ukraine. we're looking what we can do to backfill in - we can do to backfill in countries such as poland who may want to send heavier weaponry to defend the ukrainians. translation: ukrainian president has welcomed another commitment. translation: i commitment. translation: ., ., .,., translation: i am great to our british friend _ translation: i am great to our british friend for _ translation: i am great to our british friend for the _ importance decision announced today to return the embassy to kyiv. the united kingdom became zist kyiv. the united kingdom became 21st country to return the diplomatic mission to our capital, and it shows we are not the only ones in life over death. , , ., not the only ones in life over death. , , . . , not the only ones in life over death. ,, . ., death. russia has for the first time admitted _ death. russia has for the first time admitted that _ death. russia has for the first time admitted that at - death. russia has for the first time admitted that at least i death. russia has for the first i time admitted that at least one crew member died when its black see flagship sunk last week. it is and others are unaccounted for. ukraine says it struck the visa — melissa with results. moscow blamed it on a fire. there is claim and counterclaim. president zelensky says the attack on ukraine is only the beginning and that russia intends to invade other countries. simon jones, bbc news. two months after the start of the russian invasion of ukraine, the united nations refugee agency has told the bbc that 25 million people have been directly impacted by the war. deputy high commissioner kelly clements was talking to our correspondent nick thorpe on a visit to the ukraine—hungary border. there was still snow on the ground when i watched the first refugees from ukraine into hungary. now it is spring, but the welcome is still warm. the faces still wary. hungarian trains cross the border every day to bring people to safety. the un refugee agency monitors the situation closely inside and outside ukraine. 5 million refu:ees and outside ukraine. 5 million refugees now _ and outside ukraine. 5 million refugees now have _ and outside ukraine. 5 million refugees now have left i and outside ukraine. 5 million l refugees now have left ukraine, and inside the country of course people are moving continuously as safety, as shelling may reduce in some areas and as they are able to, there are over 7 million internally displaced people inside the country and we estimate an additional 13 million may be stranded or impacted or unable to move. but are in need of aid. how to ensure that kids are in school systems, to healthcare, protection requirements, those who have fled, of course unbelievable violence, how to support psychosocial maize, mental needs and the like. in a mental needs and the like. in a sacious mental needs and the like. in a spacious tent _ mental needs and the like. in a spacious tent beside the station, mothers and children recover from the journey. while further down the border, hungarian doctors have established a mobile clinic with international support. i with international support. i used to work so i am used to have parents with a lot of stress, so for that reason, idea to go here, and i think other people want to tell the story. ijust want other people want to tell the story. i just want to talk to someone. just to talk about normal things.— someone. just to talk about normal things. alexandra is a to - normal things. alexandra is a top ukrainian _ normal things. alexandra is a top ukrainian psychologist. . normal things. alexandra is a l top ukrainian psychologist. she recently became a refugee herself in budapest.- recently became a refugee herself in budapest. when the situation was _ herself in budapest. when the situation was very _ herself in budapest. when the situation was very acute, i herself in budapest. when the situation was very acute, not l situation was very acute, not many people are dressed for psychological help. it was physical understandable things like misplaced, playful leaving and meals and so on. later on, so when there is a safety and emotional state becomes more clear and people, women can understand something goes wrong, and they can address the psychologist, actually that is what i do. psychologist, actually that is what i do— psychologist, actually that is whatldo. . , , what i do. while many people are still leaving _ what i do. while many people are still leaving ukraine, i what i do. while many people | are still leaving ukraine, more and more are also going back. it is a fluid dynamics situation. some peoplejust want to be with their loved ones. i want to be with their loved ones. . , , ., ones. i have very strong connection _ ones. i have very strong connection with - ones. i have very strong connection with my i ones. i have very strong l connection with my family ones. i have very strong i connection with my family and i worry how they are without me in this very dangerous conditions. it is better to be together in danger.- conditions. it is better to be together in danger. some are auoin together in danger. some are going back — together in danger. some are going backfor— together in danger. some are going back for a _ together in danger. some are going back for a short - together in danger. some are going back for a short visit i together in danger. some are going back for a short visit to | going back for a short visit to fetch elderly relatives or check on their homes. others hope to return for good. for whatever reason, it takes a leap of faith to return to a country at war. nick thorpe, bbc news. campaigning has ended in france ahead of what's expected to be a close run—off between president emmanuel macron and his far—right rival, marine le pen, on sunday. opinion polls suggest emmanuel macron still has the upper hand, but his challenger could perform better than she did when the pair went head to head in 2017. our paris correspondent lucy williamson reports. it's a bit late for tips on how to land a punch on his opponent. after five divisive years in power, what emmanuel macron needs is to persuade voters who'd quite like to punch him to give him their vote instead. florentine and chloe are both teachers here in the suburbs of paris. they voted for mr macron last time. now, they've come to give him a hard time. le pen isjust...huge disaster, but macron is still a disaster, i think, for school and service—public, ah, for public service in france. he's killing that, step by step. florentine says she'll abstain on sunday rather than vote for macron again. i'm still hesitating. i think if i do it, i might really get sick just after. he's a good talker, he knows how to try to seduce people, but we're not stupid. chloe gets close enough to shout her question on teacher's pay. "do you think teachers are lazy?" she asks. through the scrum, macron grips her hand and locks in her vote. translation: he gripped my hand and said, "we're going to do something about that, "i promise." so, i will vote for him, but i want something in return. truck horn honks there's a real choice on sunday about where france is heading. marine le pen is promising huge tax cuts and to "take back control". emmanuel macron wants a global nation set on economic reform. divisions here are deepening with every election cycle and voters are now split between two radically different views of the world — with one candidate presenting herself as the spokeswoman of the people, and the other saying he's protecting france from her. dylan says he voted far left in the first round of this election. on sunday, he's voting far right. translation: it's not that i like the idea of voting i for marine le pen, but we have to choose between the two, and when you're choosing between cholera and the plague, you choose the lesser of two evils. crowd chanting at herfinal rally, here in arras, marine le pen said voters should choose her to block mr macron. both say the other is dangerous. both spark loyalty in their own fans and loathing in those of their rival. but most voters belong to neither camp, and in this battle over france's future, they're being asked to choose a side. lucy williamson, bbc news, paris. voting takes place on sunday in france, and whether you're watching in the uk or around the world, we will have a special programme bringing you the result, starting at 1730 gmt. join us for that as france decides. guns are now the leading cause of death for us children and teenagers according to new research. data from the centers for disease control and prevention shows that over 4,300 young americans died of firearm—related injuries in 2020, overtaking drug overdoses and car accidents. while suicides contributed to the toll, the data shows that homicides form the majority of gun—related deaths. more than 390 million guns are owned by us civilians. for more on that, check out the bbc a website where there are details of all the research, but also background about america's relationship with guns. case studies as well as facts and figures about the country was my gun culture. that's all on bbc news online or the bbc news app. a reminder of our top story: the united nations secretary—general, antonio guterres, is to have separate face—to—face meetings with presidents putin and zelensky. satellite images appear to show a second mass grave site on the outskirts of mariupol. let's stay with that story now, and the images were released by the satellite company maxar. the firm says the cemetery location has got bigger over the past month and has several long trenches which may suggest a new burial site. but how do you verify such a claim? malachy browne is a senior story producer on the visual investigations team at the new york times. i asked him for his thoughts about these new satellite images. in this case, the satellite images came from maxar but also, they were first reported by radio free europe using a second company called planet, and these are trenches that are dug in an existing cemetery. you can tell that they are trenches because you can see the shadow cast by the wall of the trench into the ground about a0 metres long — it starts to be dug around the end of march, the last week of march and in the first couple of weeks in april, it has doubled in size, and you can see that in the fresh earth that has been overturned. you can also see that — it appears that the early trenches at one side of the new burial site have been filled in because those shadows no longer exist, whereas they do on fresher ground, suggesting that early trenches are filled and they are digging new ones, presumably to bury more bodies. we're looking at some of the satellite images you're talking about now. i know you haven't actually been working particularly on these images, but do you think these will become crucially important as the un and other investigators try to gather solid evidence of possible war crimes? how helpful are satellite images? i think so. the satellite images indicate that there is a high death toll and that is consistent with the reports that we are hearing from officials there and the meagre information that we're getting. this particular neighbourhood on the outskirts of mariupol was the scene of heavy fighting during russia's approach. we were keeping an eye on it and in fact we saw multiple rocket launchers in that area in march, and i think mariupol is a bit like bucha and the other towns that are occupied by russia now. if russia leaves, it will become accessible. i dread to think what we'll find when we get access to the city. and you'ave worked extensively on bucha and the claims of a massacre there, which russia denies. what's your assessment of the evidence that you have seen in your work? the satellite images show in bucha that the bodies that were found when ukrainian officials and journalist finally got access to it were in those positions on the street for weeks while russia was in control of the town. that was contradicted directly by russia saying that these bodies appeared after our soldiers left. we found video then afterwards that showed russian armoured personnel carrier firing at a civilian who rounded a corner into that convoy on a bicycle at that same intersection. so not only was russia in control of the town but they had a convoy of 20 or more military vehicles at that intersection where many bodies were found and our reporters on the ground have been speaking to witnesses in the weeks since and they are hearing stories of executions in bucha by russian soldiers. and also russian tv ran the new york times story on the female cyclist that seem to have been shot for absolutely no reason. russia's response to that was fake news, what is your response to that? it fake news, what is your response to that?- fake news, what is your response to that? it is typical russian deception, _ response to that? it is typical russian deception, really. i response to that? it is typical russian deception, really. to| russian deception, really. to try to, claim that it is a hoax by western media to frame russia and it has some success at home of that but the facts are clear. it's also clear from russia's to those from bucha that it had no interest in investigating it, it flatly denied it.— investigating it, it flatly denied it. , �* ., ., denied it. malachy browne from the new york _ denied it. malachy browne from the new york times _ denied it. malachy browne from the new york times they i denied it. malachy browne from the new york times they are. i florida's governor has signed a law that eliminates disney's right to act as a local government in orlando where it has its theme park. the move by ron desantis comes after disney criticised the us state's ban on teaching about sexuality in schools. the special status allowed them to collect taxes and guarantee public services such as rubbish collection and water treatment over an area near disney world. the mexican authorities have been criticised for not doing enough to tackle femicide, the murder of women because of their gender. more than 150 women have been killed in the first two months of this year alone, and around 25,000 women are missing nationally. debanhi escobar was the latest to go missing earlier this month. her father said the body of the 18—year—old law student has now been found. ana maria salazar is a former us security advisor and is based in mexico city. she said the authorities face a broader crisis of violence. well, because they have a different view in terms of how to deal with violence in mexico. i mean, there is a big question mark — how do you deal with criminal organisations who are among the most dangerous criminal organisations in the world, at the same time you have an enormous amount of violence that don't necessarily have to do with organised crime. so the problem is, what strategy are they going to use, and they have decided is through these development programmes, providing scholarships, providing funds, trying to improve the lot of the poorest of the poor. which is — it needs to be done, mind you, it has to be done, but as you provide this money to the poorest of the poor and these scholarships, it doesn't necessarily mean you are going to solve the problem of violence. and the fact is we are going through, in mexico right now, one of the highest index of violence, homicides, in the world. and like i said, you are absolutely right, it is shocking, mexico is about to reach 100,000 people disappeared in the last a0 years. so we have people who are being, who have disappeared, 20,000 in the last three years. we have an enormous amount of violence against women, murders against women have skyrocketed, and we continue to have to deal with these extremely dangerous criminal organisations. so mexico is a scary place to live for anyone, from the sounds of it. but is it particularly scary for a woman? i think so. and even though the government diminishes the fact of this increased violence against women, i mean they talk about focusing on violence in general — but i do think, when you look at these cases — you just mentioned one case, which in fact, when they were looking for the young woma