welcome to our viewers on pbs in america and around the globe. we begin in ukraine, and as more russian forces head to the east of the country for a major new offensive, horrors are being uncovered in the villages and towns close to the capital in the north, that they used to control. there are repeated stories of violence against women, in particular of soldiers using rape as a weapon of war. our correspondent yogita limaye, has been speaking to some of those affected, and a warning that her report does contain material you may find upsetting, including descriptions of sexual violence. a quiet rural neighbourhood, shattered by barbaric violence. in a village west of kyiv, a first—hand account of rape by invading soldiers. when we started talking to this woman, we didn't know what we were about to hear. we are hiding her identity to protect her. translation: a soldier entered our house. - my husband and i were there. at gunpoint, he took me to a neighbouring house. he was ordering me, "take your clothes off or i'll shoot you." then he started raping me. while he was doing that, four more soldiers entered. i thought i was done for, but they took him away. she returned home to find her husband shot in the abdomen. he died two days later. she buried him in the backyard. translation: i found drugs and viagra that they left behind. - they would get high and they were drunk. most of the invading soldiers are killers, rapists and looters. only a few are ok. i want to ask putin, "why is this happening?" i don't understand. we are not living in the stone age. just up the road, we heard of another rape case. it is being investigated by the police. this is the house a woman was taken to and assaulted. upstairs, the bedroom where she was later killed. it's a disturbing scene. blood stains all over. on the mirror, a message in lipstick. tortured by unknown people, buried by russian soldiers, it says. out in the garden, we were shown her grave. a day after we went, ukrainian police exhumed her body. the note in lipstick, we are told, was left by a separate unit of russians who found her body and buried her here. they later told a neighbour, oksana, about the dead woman. translation: they told me - she had been raped and that her throat was either slit or stabbed, and she bled to death. they said there was a lot of blood. we travelled 70 miles east to another village, to what used to be the home of a family. a couple in their 30s, and their young child. signs of their peaceful, ordinary life lie amidst the ruins. on 9 march, russian tanks rolled in. two soldiers shot the man dead. the woman who lived in this house managed to escape, along with her child. she called the ukrainian police and she has given them her testimony. she has told them she was raped multiple times by the two drunk russian soldiers who killed her husband. and she said that they threatened to kill her little boy, too, if she didn't do exactly as they said. as the soldiers left, they burned down the house. the police chief has told us they have gathered evidence and plan to go to the international court. in kyiv, we met ukraine's human rights ombudsman, lyudmyla denisova, who has been recording rape cases. translation: about 25 girls - and women aged 14-24 were raped during the occupation in the basement of one house in bucha. nine of them are pregnant. russian soldiers told them they would rape them to the point where they wouldn't want sexual contact with any man, to prevent them from having ukrainian children. a 25—year—old woman called to tell us her 16—year—old sister was raped in the street in front of her. to calculate the number of such sexual crimes is impossible at the moment, because not everyone has come to us. among the people we met, there is no relief that the russians have gone, because they have left behind deeply wounded lives that might never recover. yogita limaye, bbc news, kyiv. meanwhile in the last couple of hours president zelensky has warned about alleged russian threats to use chemical weapons in ukraine — have a listen. translation: today the occupiers issued l a new statement which testifies to their preparation for a new stage of terror against ukraine and our defenders. one of the mouthpieces of the occupiers stated that they could use chemical weapons against the defenders of mariupol. we ta ke we take this as seriously as possible. i want remind the world's leaders that the possible use of chemical weapons by the russian military has already been discussed. and britain's foreign secretary liz truss earlier posted on twitter to say there are "reports that russian forces may have used chemical agents in an attack on the people of mariupol". she says "we are working urgently with partners to verify details" and that "any use of such weapons would be a callous escalation in this conflict". she says the uk government would "hold putin and his regime to account". let's get some of the day's other news. the prime minister of sri lanka, mahinda rajapaksa, says his country has reached a decisivejuncture and called for patience as protests continue over the government's handling of the economic crisis. in a televised address, mr rajapaksa said the unrest was harming the economy. officials in shanghai have announced a slight easing of strict covid lockdown measures for a limited number of residents. communities which go for at least two weeks without a covid infection will have their restrictions altered. the current rules have provoked increasing anger from those unable to orderfood to their apartments. president biden has announced new rules to crack down on what are known as �*ghost guns�* — privately made firearms without serial numbers that are increasingly being used in violent crime in the us. ghost guns are sold in kits and can be assembled at home. a new prime minister has been sworn in in pakistan, after the former cricketer imran khan was ousted in a confidence motion. his successor shahbaz sharif is the brother of another former prime minister, nawaz sharif, and takes office amid corruption allegations, which he has said are politically motivated. i asked farahnaz ispahani, who's a global fellow at the woodrow wilson center and a former member of pakistan parliament, why mr khan was being ousted now when elections are due to take place next year. firstly, mr khan when prime minister hounded the opposition to the point where they all got together, very disparate political parties from the left to the right and in between, and also, he lost the support of the pakistan military which you know is a very important institution. so he lost their political support as well so basically, he got himself into a situation where he hounded the opposition, his allies deserted him and at the end of the day, the military left political support for him. so that is why he ended up where he was, the first prime minister in pakistan to face a no—confidence motion and although he and his supporters like to think there is a bigger conspiracy, these are the facts. they are just three points in front of you that any student of politics would tell you is very realistic. mr sharif has several challenges up ahead, he has also made several promises, one of which is that he wants to improve relations with the united states, is that possible? i think prime minister sharif is going to face a huge problem and with the united states, basically it is notjust that he will have to work slowly to win over notjust president biden but the us as a whole, because at the moment the us is not that involved with pakistan. it is dealing with ukraine, it has got a lot of foreign policy issues in the middle east and so pakistan is just not at the top of the agenda. of course mr khan's huge rallies in the street and all of that are obviously disconcerting for people here also but the bottom line is, i think they will be reassured here in washington that they are dealing with someone who at least is calm, capable and experienced. you say reassured but no western government really likes instability and this, as you say, the first time a pakistani prime minister has been forced from office in this way. we have seen thousands of people out on the streets, is this really reassuring to western nations? is mr sharif a safe pair of hands? let's look at it this way. he is a safe pair of hands because he has run the country's largest province, 60% of pakistan's population for over a decade, three terms. so yes, he knows how the bureaucracy works, he knows how to deal with the opposition, he has a lot of experience. stay with us on bbc news, still to come: back in court for a blockbuster defamation case, asjohnny depp�*s trial against his ex—wife amber heard begins in the united states. pol pot, one of the century's greatest mass murderers, is reported to have died of natural causes. he and the khmer rouge movement he led were responsible for the deaths of an estimated 1.7 million cambodians. there have been violent protests in indonesia, where playboy has gone on sale for the first time. traditionalist muslim leaders have expressed disgust. the magazine's offices have been attacked and its editorial staff have gone into hiding. it was clear that paula's only contest was with the clock, and as for her sporting legacy, paula radcliffe's competitors will be chasing her new world—best time for years to come. quite quietly, but quicker and quicker, she seemed just to slide away under the surface and disappear. this is bbc world news, our top story: the bbc uncovers more evidence of the sexual violence ukrainian women have suffered at the hands of russian forces. for more on the humanitarian situation in ukraine, i've been speaking to joe english from the united nations child ren�*s fund. the scale of this is just staggering. more than two—thirds of ukraine's children forced from their homes. and when we say forced from their homes, many of these kids will not have homes to go back to. we've all seen the scale of devastation in places like mariupol, in places like kherson and kharkiv. but the situation — we talk about those who fled their homes as either refugees or those displaced in the country, but the situation for those who remained in their homes is also desperate. we estimate that almost half of those children may lacking enough food. many of those families are stuck in these places because they have no other options. they have nowhere safe to go to. geneva conventions exist to protect civilians during times of war, there are specific references to women and children, but we are hearing repeated evidence that these arejust being ignored. yes, you know, the stories that we are hearing, listening to the reportjust now as well, i don't think anyone can hear these reports, can see these images are not be absolutely horrified. we know that the killing and maiming of children, sexual exploitation, sexual violence, rape, the denial of humanitarian access, attacks on schools and hospitals, these are all great violations of children's rights in times conflict. so when we hear these reports there has to be independent investigations and, ultimately, the perpetrators have to be held to out. mer you have mentioned some of the risks there that women and children face. what are some of the others that when people are fleeing their homes, fleeing their towns, the dangers they face? there's a direct impact of the violence, when manuel was speaking to the security council he told the story of a little boy, four years old, who was shot in the stomach trying to flee with his family, i met one boy, 15, who lost his mother in a landmine accident, he was in the vehicle at the same time, he saw his mother pass away in flames in front of his eyes. so the impacts of this, notjust the direct impacts of the violence, but the long—term psychological impact, the trauma that children and families to go through and the support they need to deal with this is sky high. you mentioned support, people be watching this feeling desperate and helpless, what can people do to help? yes, as you know, i was in poland and i was in ukraine. and i have seen the impact that our humanitarian work does. when people donate to unicef, this money is providing surgical kits in places like kharkiv for doctors and nurses who are operating in bunkers, and bomb shelters, it is providing toys to kids who spent the last month living in a subway system because they can't go above ground because of the threats of bombs and air strikes. so humanitarian organisations, unicef, the un, we are there delivering supplies, but ultimately the children of ukraine need peace and they need it now. joe english there. in the philippines, at least 25 people have died in landslides and floods caused by tropical storm megi which hit the country's eastern and southern regions on monday. authorities say they've recovered 25 bodies so far. earlier, i spoke to our philippines correspondent howard johnson. at the moment, the philippine coastguard are really trying to help people in this central part of the philippines, the leyte, samar area and we're footage on social media of people wading chest height through water, fast moving water. since sunday, it's dumped nearly 300 millimetres of rain in some parts of the country. and we've seen that people have been disconnected from their land, from their homes. we've seen the electricity go down, the phone signal is down in certain parts, areas like samar, cebu, iloilo, and baybay are being badly affected. we saw landslides in baybay that killed more than 20 people. and still the full extent of the storm will only emerge in the days ahead. this is during holy week, a time when most people travel back to their home provinces to be with their families and also during presidential campaigning. we have seen both the front runners, bong bong marcos, and lenny robredo offering their help with aid. and let's not forget, this was an area that was hit four months ago by super typhoon rai. the international confederation of red cross said people in this area, up to 2.4 million people are still in need from that storm and are being devastated again by a second storm and that will definitely up and people's lives in this period when people should be celebrating with theirfamilies. howard johnson there. here in the uk, and a man from london who was radicalised by the islamic state group has been found guilty of murdering the conservative member of parliament, sir david amess. ali harbi ali killed sir david at the mp�*s weekly constituency surgery in leigh—on—sea in the south—east of england last october. ali had spent months researching how he might murder other mps, even staking out the home of a government minister. our home affairs correspondent dominic casciani reports. 15 october last year, and in the leafy suburbs of leigh—on—sea, a man has just murdered an mp. they say he's got a knife and he's just stabbed someone. two officers with just batons and pepper spray are the first to the scene. they decide they can't wait for firearms or taser units to arrive. stay back, yeah? mate, drop the knife! on the floor now! on the bleep floor! get it down! taser, taser! we've got him. it's all right, it's all right. right, search him. right, mate, at the moment, you're under arrest for murder, all right? at southend police station, the killer declares his motive. ali harbi ali grew up in croydon in south london. he was clever enough to consider becoming a doctor until syria's civil war changed the teenager's ambitions. at first, he wanted to fight for the islamic state group. but in 2019, he followed a worldwide call from the group's propagandists to strike at home instead. his target — any of the 524 mps who had voted to bomb is fighters. and, carrying a knife, he was tempted to kill any one of them as they came and went from parliament. people can self—radicalise and do this almost entirely in secret, alone in their house, and do that online. and some of their activity when they then leave their house presents an opportunity for us and the public, maybe, to work together and identify their behaviour. harbi ali considered attacking cabinet ministers, but settled on this man, sir david amess, mp for southend west. he'd advertised his constituency surgery on twitter and, lying that he was local, harbi ali fixed an appointment, e—mailing to say, "i don't think i'll take too long." ali harbi ali arrived here at the old bailey a self—confessed terrorist killer, but he then taunted sir david's family, declaring that he'd done nothing wrong. he said he'd killed to protect muslims in syria. but the judge said that was no defence to the crime of murder, and the jury took just 18 minutes to convict him. he literally did something that you can't even imagine. and it doesn't heal, itjust hurts. he's hurting all the people that were involved, making them relive it. arrogant to the end, he refused to stand for the verdict. just metres away, sir david's grieving family, watching the killer's final insult to them and a public servant who had only ever wanted to do good. dominic casciani, bbc news, at the old bailey. jury members have been chosen for the legal battle betweenjohnny depp and the actress amber heard. the actor is suing his ex—wife for $50 million, claiming she defamed him in an opinion piece she wrote for the washington post about being a domestic abuse survivor. he has repeatedly denied abusing her. our north america correspondent, david willis has the details. johnny depp, as you said, sued the sun newspaper over claims he was a wife beater and lost. now he is suing his ex—wife, amber heard, for $50 million, that she defamed him in an article that appeared in the washington post in 2018, in which she described herself as a domestic abuse survivor. now that, according tojohnny depp, amounts to a claim that was himself an abuser. the london court laid bare some very unsavoury details about the couple's relationship. his affinity for drugs and alcohol and he said that it cost, the surrounding publicity, cost him his role as captainjack sparrow in the pirates of the caribbean franchise and a role in fantastic beasts. for her part, amber heard has said he basically libelled her when he described her as a liar and she is counter suing for $100 million. now, opening statements are due to begin in the morning. proceedings will be televised and even though the judge in this case has urged both amber heard and johnny depp to avoid posing for photographs and giving autographs outside the court, as they did in the high court case in london, fans were queueing from 5am this morning to try to get a seat in the courthouse. and they are expected to lay siege to that building in the next few weeks to hear not onlyjohnny depp and amber heard give evidence, but also some very famous witnesses, including actors james franco and paul bettany and amber heard's ex—boyfriend, elon musk. why is this taking place in fairfax, virginia, when both of these two people, amber heard and johnny depp live here in los angeles, i hear you ask. well, according tojohnny depp�*s lawyers, it's all very obvious, fairfax is where the online edition of the washington post is published. amber heard's lawyers take a more cynical view of that, they say it's simply because virginia's defamation laws are more favourable to plaintiffs than those in california. and this star—studded trial is expected to last about six weeks. britney spears has announced she is pregnant, months after she escaped the legal arrangement that gave her father control over many aspects of her life. the singer told her a0 million instagram followers she was having a baby with partner sam asghari. the 40—year—old, who has two teenage sons, also revealed she suffered depression during a previous pregnancy and said she "won't be going out much" following her announcement. and a reminder you can get much more on the stories you've seen in the programme on bbc news online and the bbc news app, including our main story. a crucial period for ukraine — according to president zelenksy — as speculation mounts that russia is regrouping to attack the east of the country. hello there. it was a much milder start monday morning, largely frost—free, as it will be again this morning. and that's because we've changed the wind direction. they're coming in off the atlantic, they are gathered around an area of low pressure, which means we are pulling in more cloud and showery rain, as well. but it will at least stay relatively mild, if not warm in the sunshine as we saw on monday night, 19 celsius in heathrow. but lots of heavy showers have been gathering towards the south through the night. there could be some rumbles of thunder, patchy rain heading its way northwards elsewhere, and that's why we are seeing our temperatures holding up. the winds starting to ease, so it won't be as windy on tuesday, and we've still got this onshore breeze for the east of scotland, the northern isles — so quite chilly here, but it shouldn't be as chilly for the eastern side of england, but as you can see, we've got showers and longer spells of rain, some of them heavy, some of them thundery pushing their way northwards and eastwards through the day. where we see some sunshine, temperatures will lift above average, particularly for england and wales. 18—20 celsius possibly across the east anglian region in the southeast, but for most, temperatures a little bit above par, except where we have the more persistent rain, which is likely to continue its journey northwards then through tuesday night into wednesday. eventually, the milder air reaches the northern isles, and again, it looks like a relatively mild start to wednesday, but misty and murky in places. we could have some patches of fog around tuesday as well as wednesday, which will take their time to break up. and then it's more likely to be a day of sunny spells and scattered showers, so perhaps a bit more sunshine on offer. but again, like we will see on tuesday, pollen levels pretty high, and temperatures getting into the high teens more widely as well further north, it will feel warmer, i think, across scotland and northern ireland on wednesday. come thursday, we've got another weather system starting to work its way in from the west ahead of that early morning mist and fog taking the time to break up. but again, temperatures 15—19 celsius, and that's above average for this time of year. and then further ahead into the easter weekend, that weather system weakens as it works eastwards because it's working into high pressure. so it's how established that high—pressure becomes, really, this weekend, how good it is at keeping our weather fronts at bay. there is still a little bit of uncertainty, as you can see, with low pressure close by to the west later on into the easter weekend. but at the moment, for many, there will be some warmth around, often dry and bright, but we do need to keep an eye on that one. do stay tuned. this is bbc news — the headlines: the authorities in kyiv say they're documenting numerous cases of women who have been raped by russian soldiers — moscow denies any such cases. meanwhile ukraine says russian tanks have begun advancing towards the eastern donas region for a renewed offensive. sheba sharif has been sworn in as the new prime minister of pakistan during a ceremony in islamabad. mr sharif, whose brother away held the same job for three terms, was chosen following a chaotic session in parliament. the election was held after iran khan was ousted in a no confidence vote. the hollywood star johnny depp�*s legal battle with his former wife amber heard has begun in the us