welcome to bbc news. i'm rich preston. our top stories: a fire at a rohingya refugee camp in bangladesh destroys shelters, leaving thousands of people homeless. explosions clashes between greek police and protesters angry at last week's fatal train crash. the prime minister asks forforgiveness. the government needs to change the way they think. they need to start caring about our lives. this must never happen again. a bbc investigation uncovers evidence that twitter is no longer able to protect users from trolling following lay—offs and changes under elon musk. why are these accounts that are bullying and harassing people still allowed on the platform? i would like him to read some of the messages

that i have been sent. prince harry and meghan�*s team say they have been invited to the king's coronation, but won't confirm whether the royal couple will attend. this year's oscars feature a record number of nominees of asian heritage. we've been speaking to one hopeful about their special recognition. i was just hoping that the movie gets finished and that people watch it and so the fact that we have come all the way this far has been so exciting. hello there. very warm welcome to the programme. we begin our coverage today with the story of a huge fire

in bangladesh which has destroyed about 2,000 shelters at a rohingya refugee camp in the south—east of the country. officials say the blaze has been brought under control but around 12,000 people have been left homeless at the camp in cox's bazar and have nowhere to go. 0ur correspondent anbarasan ethirajan reports. the bamboo shelters of rohingya refugees in cox's bazar district are no match for the raging blaze. residents ran from the huts with their meagre belongings as the fire spread quickly. it's yet another blow for the rohingya refugees who had to flee their homes from neighbouring myanmar. thousands have become homeless in a matter of few hours. it will be a challenge for the authorities to rehome those affected. nearly a million rohingya refugees live in squalid conditions and camps scattered in cox's bazar district. the latest incident will put pressure on the ongoing aid efforts.

the resources that we now need is to rebuild the infrastructures, and it takes a little time to do that. and as you know, the funding has been depleting. in fact, the world food programme had to cut down $2 from their existing package, which has also had repercussions on the rohingya refugees, particularly women and girls. the fire has been put out in a few hours and the damage is being assessed. there have been a number of fire incidents in the camps in the past few years, and some are thought to be arson attacks. for the rohingyas, life is precarious, sometimes the camps are inundated with floodwaters, and in the dry season, the risk of fire. a stark reminder on the living condition of rohingya refugees. anbarasan ethirajan, bbc news.

let us come to europe now. the prime minister of greece, kyriakos mitsotakis, has asked for forgiveness from the families of 57 people who died in a rail crash on tuesday. he said it should not have been possible for two trains heading in different directions to run on the same line without anyone noticing. thousands of protesters, including striking rail workers, have again clashed with police. they blame the collision on government neglect. sofia bettiza reports. there's an outcry in greece. for the third day in a row, people have been protesting all over the country. translation: we feel unspeakable _ translation: we feel unspeakable grief - translation: we feel unspeakable grief over| translation: we feel. unspeakable grief over the incident. it's tragic. we cannot soothe the pain of the families who lost their children nor can we bring them back, but we are here because we want those responsible to ny- we want those responsible to .a _ ., , , we want those responsible to pay. clashes broke out outside the greek _ pay. clashes broke out outside

the greek parliament - pay. clashes broke out outside the greek parliament in - pay. clashes broke out outside | the greek parliament in athens stop some protesters throwing petrol—bombs. police responding with tear—gas and stun grenades. this is a sign that anger is pulsing across greece and the systemic failings of that allowed this disaster to happen. on 28 february a passenger train under freight train that were in opposite directions ended up on the same track. this is the worst train crash to ever happen in greece. 57 people were killed, mainly students. on sunday, hundreds of balloons were released in the sky above the square in athens to honour their memory. later that day as stationmaster appeared in court. he was charged with manslaughter by

negligence stop his lawyer said he has admitted to having a share of responsibility in the accident. and the prime minister, terry argus mr tucker's, apologise to the brief families on facebook. in the greece of 2023 two trains heading in different directions cannot run on the same line and no—one noticed, he wrote. he promised a fast investigation. but many feel that's too little, too late. the crust has brought into sharp focus years of underinvestment in the railway network, as well as antiquated systems. translation: , ,, translation: despite the continuous _ translation: despite the continuous warnings - translation: despite the continuous warnings of - translation: despite the continuous warnings of the i continuous warnings of the railway workers, those responsible were indifferent to our requests over the safety systems and that is what led to this traffic accident. translation: this traffic accident. tuna/mom- this traffic accident. translation: ., translation: the government needs to change _ translation: the government needs to change the _ translation: the government needs to change the way - translation: the government needs to change the way they . needs to change the way they think —

needs to change the way they think. they need to start caring _ think. they need to start caring about our lives. this must — caring about our lives. this must never happen again. we shouldwt— must never happen again. we shouldn't be afraid to take our children— shouldn't be afraid to take our children in_ shouldn't be afraid to take our children in the metro and in trains _ children in the metro and in trains. , , , trains. this is rapidly becoming _ trains. this is rapidly becoming a - trains. this is rapidly becoming a defining | trains. this is rapidly - becoming a defining issue in the next greek general election, which could bejust weeks away. sofia bettiza, bbc news. let's get some of the day's other news. initial results from estonia's general election suggest victory for the prime minister, kaja kallas, and her reform party. with most of the ballots counted, it's secured about a third of the votes. the election was dominated by estonia's stance on the war in ukraine. pakistan's former prime minister, imran khan, has been barred from making speeches on the country's national television. pakistan's media regulator accused him of repeating baseless allegations against state institutions and spreading hate speech. mr khan says the allegations are politically motivated. hogo chavez has been remembered by venezuelans ten years after his death.

there were rallies throughout the country, while top government figures attended the main event in the capital, caracas, as did international allies, including a high—level delegation from cuba. his successor, nicolas maduro, has seen near economic collapse and the departure of five million people for a life elsewhere. current and former staff at twitter have told the bbc�*s panorama programme that the company is no longer able to protect users from online abuse, following mass sackings and changes under owner elon musk. exclusive academic research and testimony from twitter users, supports their claims, suggesting abuse is thriving under mr musk�*s leadership. our social media and disinformation correspondent marianna spring reports. with more than 350 million users, twitter�*s often described as the town square of the internet. but since elon musk took over last october, the company's

been in chaos. the personal abuse i receive on twitter has tripled. so i headed to san francisco to look for answers. twitter used to have around 7,500 employees. now, at least half of them have been fired or chosen to leave, including lisa jennings young. she worked on features designed to protect users like me from online hate. thanks so much for having us. it was not at all perfect, but we were trying and we were making things better. one of these protective measures was a nudge function, to scan tweets and ask users if they wanted to reconsider posting something potentially abusive. twitter�*s own research, seen by the bbc, appears to show the nudge and other safety tools being effective. so overall, 60% of users deleted or edited their reply when given a chance via the nudge. is it still happening? is there anyone working on it? no. there's no—one there to work on that at this time. the nudge does still exist. but when lisa and i tried it

out, it appeared to be working less consistently. no nudge. one engineer still working at twitter agreed to speak anonymously about what's been unfolding on the inside. it's like a building where all the pieces are on fire. when you look at it from the outside, the facade looks fine, but i can see that nothing is working. like others i spoke to, he said it's been difficult to maintain features intended to protect twitter users from trolling and harassment. people like ellie wilson. while at university in glasgow, she was raped. she started sharing her experience as a survivor on social media last summer. but when she tweeted about her attacker injanuary — after the takeover — she received dozens of abusive replies. the trolls' accounts targeting her had become more active since the takeover. some were newly created, or appeared to have been reinstated after musk�*s amnesty on previously banned accounts. what would you say to elon musk if you had the opportunity?

i would ask — why are these accounts that are bullying and harassing people still allowed on the platform? i would like him to read some of the messages that i've been sent and tell me why those accounts are still allowed to be on twitter. musk has used votes on twitter to make decisions about its future. these polls have no statistical value, but having contacted him every way possible, i used one to try to catch his attention. over 40,000 twitter users voted and 89% of them said they'd like elon musk to do an interview with me. neither twitter nor musk have responded to the points raised in this investigation. twitter says defending and respecting the users' voice remains one of its core values. but the users i've spoken to are left with questions. marianna spring, bbc news. president biden has said the right to vote remains under threat as he marked the anniversary of the assault by police of peaceful marchers

demanding civil and voting rights for african americans. standing at the bridge in selma, alabama where the assault, which has come to be known as bloody sunday took place, mr biden called for congress to pass legislation to strengthen voting in the us. footage of the violence in 1965 shocked the country and led to congress passing the voting rights act. analysts say black voters remain a key constituency in mr biden�*s expected bid for re—election next year. i'm joined now byjoe watkins, a civil rights advocate and former aide to president george w bush. he joins us live from new york. thank you very much for being with us. welcome back to the programme. mr bidons is again fundamental rights are under attack. why is he saying this? he saying this because he knows he doesn't yet have the support legislatively to pass strong voting rights legislation. it is something thatjohn lewis tried to get past before he

died. it has been a heavy lift, so present but wanted to underscore that by going to sylmar to help recognise what took place 58 years ago in selma and say there is still need for strong voting rights legislation —— sema. need for strong voting rights legislation -- sema.- need for strong voting rights legislation -- sema. there is the john _ legislation -- sema. there is the john lewis _ legislation -- sema. there is the john lewis voting - legislation -- sema. there is the john lewis voting rights | thejohn lewis voting rights act, which is also the freedom to vote as, what are these pieces of legislation proposed doing, why are they essential in the present�*s eyes? doing, why are they essential in the present's eyes?- doing, why are they essential in the present's eyes? they are essential because _ in the present's eyes? they are essential because one - in the present's eyes? they are essential because one makes i essential because one makes election day a holiday so people have no reason not to vote. the idea is to get as many americans to the polls as possible. we know that in other countries around the world there is close to 80— 90% turnout on election day. we don't have that in the united states that would help that happen. in regards to thejohn lewis act, what that would do if that would strengthen voting rights will it has punitive measures of states and report properly they can be punished for not doing so. so it has real teeth in it. as a way of

forcing the state to comply with federal regulations so that people have the right to vote. ~ . . that people have the right to vote. ~ ., . , vote. what evidence is there, specifically — vote. what evidence is there, specifically when _ vote. what evidence is there, specifically when it _ vote. what evidence is there, specifically when it comes - vote. what evidence is there, specifically when it comes to | specifically when it comes to the african—american community, that the legislation as it stands, isn't it tough enough, that they need this extra reinforcement?- that they need this extra reinforcement? ., , reinforcement? there have 'ust been so many i reinforcement? there have 'ust been so many fights * reinforcement? there have 'ust been so many fights over h reinforcement? there have just been so many fights over the l been so many fights over the last several years about who gets to vote and the real answer to that in the united states is everybody does. everybody is supposed to have the right to vote, they ought not be any impediments to voting, but there have been challenges to that in the last decade and so strengthening the voting rights act with thejohn lewis advancement act is so important to make sure that everybody who wants to vote has the right to vote is able to go to the polls and to exercise their rights as americans to do just that and so it is still needed. emma black in the 1980s when i was working in the united states and it for a republican member of the united states senate and my member asked me if it was delinquent for voting rights to be

supported, was need for a voting rights act even the early 1980s and titled him back then yes, it is needed so they never again in this country will black people be denied the opportunity to vote anywhere. and he agreed with that and he was an early co—sponsor of that legislation back in the 1980s. it is still needed in the 2020s and president biden realises that he is trying to build support for it. it's still going to be a heavy lift with republicans in the senate and the house, but nevertheless it is something that is sober and necessary in orderfor is something that is sober and necessary in order for all americans to have the right to vote. g ., americans to have the right to vote. , ., ~ . , americans to have the right to vote. g. ~ ., , , americans to have the right to vote. ~ ., , , ., vote. 0k, joe watts is “oining us from newt vote. 0k, joe watts is “oining us from new york. _ vote. 0k, joe watts is joining us from new york. thank - vote. 0k, joe watts is joining us from new york. thank you very much. appreciated. thank ou. stay with us on bbc news. still to come: we speak to one of the record number of asian—heritage nominees hoping to win an oscar next sunday. the numbers of dead and wounded defied belief.

this, the worst terrorist atrocity on european soil in modern times. in less than 24 hours then, the soviet union lost an elderly sick leader and replaced him with a dynamic figure 20 years his junior. we heard these gunshots in the gym _ then he came outj through a fire exit and started firing at our huts. god, we were all petrified. james earl ray, aged ai, sentenced to 99 years and due for parole when he's 90, travelled from memphis jail to nashville state prison in an eight—car convoy. paul, what's it feel like to be married at last? it feels fine, thank you. what are you going to do now? is it going to change your life much, do you think? i don't know, really — _ i've never been married before.

this is bbc world news. the latest headlines — a fire at a rohinja refugee camp in bangladesh has destroyed shelters and left thousands of people homeless. there have been clashes between greek police and protesters angry at last week's fatal train crash. the prime minister has asked for forgiveness. an historic agreement to protect the world's oceans has been approved after more than a decade of international wrangling overfunding and fishing rights. it will greatly extend environmental safeguards, which are currently confined to just over i% of international waters. the deal was finalised at the united nations in new york and is being hailed as a "significant step" by campaigners. our science correspondent pallab ghosh reports. two thirds of the world's oceans are international waters, also known as the high seas. all countries have a right to fish, ship and do research there.

this means that all marine life, some two million species, are at risk. this morning, the un agreed that 30% of the oceans should be protected areas. the ship has reached the shore. cheering and applause. we will formally adopt the text. overfishing, mining and shipping traffic has reduced the biodiversity of marine life, with nearly 10% at risk of extinction. i think that this treaty that will lay the groundwork for creating 30% of the ocean into marine sanctuaries that cannot be fished in is so important. we have to save these creatures. talks were deadlocked for years, mostly over how genetic material from plants and animals should be shared between nations.

several important drugs — including treatments for covid, hiv and cancer — were developed from marine life and campaigners say there could be many more discoveries out there. marine genetic resources are the genetic resources of things like deep sea sponges that you might find out there on the sea bed in the high seas. and this treaty was going to be our first attempt — is our first attempt — to actually work out what happens if you discover that those genetic resources are very valuable. for example, is it the new aspirin, the new drug on the market? under the new treaty, the environmental impact of activities such as mining, exploration for fossil fuels and fishing will have to be assessed in protected areas. it's taken a decade to reach the agreement and there are many more negotiations ahead to work out how the new treaty will operate. pallab ghosh, bbc news. a statement from the duke and duchess of sussex,

harry and meghan, suggests they will be invited to the king's coronation in may. it follows speculation about whether the couple, who are based in the us, would receive an invitation. their spokesperson said they would not yet disclose their decision. here's our royal correspondent, daniela relph. god save the king! at church today on the sandringham estate in norfolk. with just under two months to go, plans for the king's coronation are moving forward. invitations are posted out next month, but guests have now had save the date e—mails, and they include the duke and duchess of sussex. in a statement, a spokesperson for harry and meghan said: since they were last in the uk, harry's memoir spare has been published.

it is a very public airing of fractured family relationships. and last night, there was more. well, i certainly don't see myself as a victim. an online conversation between harry and author gabor mate, where family breakdown came up again. i'm starting to, you know, go back to the point of trauma and be able to unravel and unpack everything so that i can now live a truly authentic life and be genuinely happy--- yeah. ..and be a better dad for my kids. yeah. but at the same time, i am feeling more and more distant with my loved ones and my family. westminster abbey will host the king's coronation on the 6th of may. it's likely to be the first time we see harry and meghan back in the royal fold this year. there's no doubt that relationships are strained, but could the coronation be a moment of family unity? it will need the anger and upset to be put aside

if all the royal family are to celebrate this historic event together. daniela relph, bbc news. next sunday, it's the oscars and this year's nominations have been groundbreaking on many levels. for the first time in oscars history, there's a record number of nominees of asian heritage in a single year. in the lead—up to the awards, my colleague karishma vaswani has been speaking to shirley kurata, the costume designer nominated for her work on the movie everything everywhere all at once, which is also one of the contenders for best picture. i came in, you know, working on this movie with no intention that it was going to lead up to the oscars. i was just hoping that the movie gets finished and that people watch it and so, the fact that we've come all the way this far has been so exciting. yeah, i don't think anyone who's watched the film can not comment on some of the amazing costumes in it —

you know, the things that come to mind are like the hot dog hands, as well as the various costumes that the character of michelle yeoh also has. what was the inspiration for you in all of this? well, it was a little bit of everything, everywhere, all at once. i looked at movies. i researched movies that michelle was in, hong kong cinema, movies that inspired the daniels, sci—fi movies. you know, i researched a lot of sort of like fashion blogs and books and kind of took elements from all aspects of my life that really inspired me and sort of threw it all in, you know, on top of the bagels, so to speak. yeah, and these kinds of movies in hollywood, you don't see very many of them, do you, shirley? and the kinds of, you know, films that are typically made tend to cater to a much wider audience.

so, talk us through what it's been like for you navigating your way in the film industry. it's — you know, it's definitely been challenging. you know, there have been movies where i wasn't picked as the costume designer. i was told that, you know, i didn't have enough experience. but, you know, also, i've, you know, been in this business for over 20 years and worked with all kinds of people, so i think that it's great to sort of finally be sort of recognised for all the years of work that i've done. chuckles. what do you think the takeaway is for you for that? the importance of having sort of like asian american voice in these films, but the fact that it's also a story that's — that resonates universally.

and so, even if, you know, i work on projects where it's a story that you haven't heard before, there's always something in there that i think, you know, universally, people can, you know, understand — and that that's what really drives me. and do you think that being of asian american descent, you know, has that harmed or helped your career? has it had an impact on your career? it helped me immensely. you know, i know my parents came here, you know, with not a lot of money and they worked so hard and watching them work so hard and sacrifice so much really was something that propelled me to also, you know, work hard and continue the path to what my parents so wanted for me. oscar nominee shirley kurata. we can find out oscar nominee shirley kurata. we can find out how oscar nominee shirley kurata. we can find out how all oscar nominee shirley kurata. we can find out how all of oscar nominee shirley kurata. we can find out how all of the nominees do this time next

week. you can reach me on twitter. i'm @richpreston. please do get in touch. hello. after a grey weekend, more of you will see a little bit of sunshine in the days ahead, but it'll come at a price — it's going to turn much colder out there and, for some, distinctly wintry. risk of some disruptive snowfall across north and east of scotland on monday and by tuesday, that extends into the north—east of england, too. sudden reductions of visibility and the snow could be mounting up in areas. those at greatest risk marked here — up to 20cm of snow in the far north of scotland but there could be the odd flurry elsewhere, and it all begins now. this weather front is bringing about the change, opening the door to those arctic winds, pushing into northern scotland for the start of monday. frequent snow showers around. a dividing line is there across into northern ireland and northern parts of england first thing. rain or drizzle, lots of cloud on that, turning to sleet

and snow on its back edge as it works its way southwards but with some sunshine. frequent snow showers in northern scotland. temperatures dropping — barely above freezing by the end of the day. but through wales, the midlands, southern england, it's as you were. temperatures similar to the weekend. plenty of cloud, just one or two sunny breaks. here into the evening, though, we'll see some outbreaks of rain just as our weather front drifts its way south. there could be some sleet and snow for a time, notjust on the hills. in its wake, icy conditions for tuesday morning as temperatures drop quite widely. widespread frost away from the south and frequent snow showers the north coast of northern ireland, far north of scotland and down through some eastern counties of england. but elsewhere, it can't be ruled out. but a cold day for all. this is what it will feel like — sub—zero for many through the bulk of the day. and what will follow will be a particularly chilly night. temperatures into minus double digits as we go into wednesday morning where the snow is lying across parts of northern scotland. from there on, though, it gets a bit complicated because we've got atlantic air trying to work its way back, fighting against that arctic air.

on the northern edge of that, we could see some snow and that's dependent on wriggles of weather fronts and pushing in areas of low pressure. certainly for wednesday, there is a chance we could see some snow across southernmost counties of england if that weather front gets close by, easing through the day before returning into the night towards the south—west. many, though, further north will see some dry and sunny weather continue. it will still be cold. but then, through the end of the week, it's just how quickly that boundary pushes northwards. there is a potential, particularly through friday into the weekend, of some more disruptive snowfall before things turn milder and wetter across the south. take care.

this is bbc news. the headlines: a huge fire has ripped through one of the rohingya refugee camps in the south—east of bangladesh. the blaze in the cox's bazar district gutted more than 2,000 shelters, leaving thousands of people homeless. no casualties have been reported so far. there have been fierce clashes between greek police and protesters angry at last week's fatal train crash. at least 57 people died when two trains collided near the city of larissa. the prime minister has sought forgiveness for the country's worst ever rail disaster. current and former twitter staff say the company is no longer able to protect users from online abuse or exploitation. one senior designer has told the bbc that her entire team, who worked to keep people safe, had been sacked.

twitter hasn't responded to the claims.