people with breathing difficulties are being warned to take special care. britain is to host a global summit on the safety of artificial intelligence later this year. the announcement comes as prime minister rishi sunak continues his visit to the us. he's due to hold talks with president biden at the white house later today — aimed — in the words of the uk government — at cementing their "joint leadership in the technologies of the future". the british government says the summit will aim to agree ways of evaluating and monitoring al's most significant risks. it's not yet clear who will attend the meeting, as our technology editor, zoe kleinman, reports. we don't yet know who's going. we don't yet know which countries they'll be from. we do know that there is this enormous race not only in the in the seemingly endless number of ai products that are being released

and developed. there's so much money and so much research pouring in that this is not going to stop any time soon. and so countries including the uk are racing to to position themselves not only as leaders within it, but also to find a way of regulating it to try and maximise the benefits that it can bring. and we know it brings huge benefits. you know, we just saw the other week an ai tool discover a new antibiotic, for example. but there are also lots of risks as well. not least, you know, how is this going to affect things like the jobs market in the near future? we already see tools like chat—gpt able to do jobs that traditionally humans have done, and the uk very much wants to be part of this conversation. well, it wants to lead the conversation. the question is, can it actually, you know, when the amount of money and resources and infrastructure that we have here is comparatively small, you need a lot of computers to process data that's used in al, an awful lot of them. and we just do not have that infrastructure on anywhere near the scale that,

for example, the us does. elsewhere in the world. the kenyan government says it has enough evidence to charge the leader of a doomsday cult with genocide and crimes against humanity. pastor paul mackenzie convinced his followers to fast until they died in the remote shacka—hola forest, in order to go to heaven. more than 250 bodies have been found and at least 600 people are still missing. the kenyan government plans to convert the coastal forest where the bodies have been exhumed into a national memorial site.

an undercover bbc investigation�*s unmasked the man behind a number of websites selling videos of women being sexually assaulted on public transport across east asia. visitors to one of the sites could even order their own tailor—made videos. bbc eye'sjow—yin fung reports from tokyo. this is nagoya injapan. translation: there is a guy looking for a target. - the railway police are running a covert operation, on the hunt to catch sexual assaulters. translation: | would - like to follow him to check his behaviourfor a bit. sexual violence against women in public is a global phenomenon. but injapan, the problem is so endemic that it has its own name, chikan. translation: you're riding back and forth on a single ticket. - it looks like the kind of behaviour a chikan perpetrator would make. the suspect is taken to the police station for further questioning. chikan has been normalised over the years by its prominence in the adult entertainment industry. but the reality is much more sinister.

translation: in the trick of the trade, it felt - like a hand hitting me. takako, not her real name, was only a teenager when she was sexually assaulted on the train for the first time. translation: it started to feel like it was touching and grabbing me. i that's when i finally realised that this was chikan. i was sexually assaulted almost every day. bbc eye has been investigating a network of websites selling thousands of videos of women being sexually abused on public transport across east asia. this is a horrific business of sexual assault. the websites are run by a shadowy figure known as uncle qi. but who is he? our investigation has led us to tokyo, where we tracked down uncle qi and his close associates. translation: hi. hi, noctis? posing as a potential investor, our undercoverjournalist met

with them multiple times, until uncle qi himself agreed to meet us. in this meeting, tang zhuoran, a 27—year—old from china admits to being uncle qi. the man behind all the websites we have been investigating. translation: how many people do you have in your current team? - translation: i have a team of 15 people. | he also admits to making huge profits. cashing in on sexual violence against women. translation: our daily | turnover is £550 to £1100. we located an address for him in tokyo and went to put our allegations to him.

translation: my name's zhaoyin feng, i'm a reporterfrom the bbc. we know that you are the online persona uncle qi. do you do this for the money or do you enjoy abusing these women? stop, stop, stop! hey! we put our allegations to him. his only response is silence. and then violence. he has since leftjapan. his associates say they are no longer working with him. the country is set to reform its sexual assault laws. however, campaigners say these changes don't go far enough. zhaoyin feng, bbc news. over to france now where a man with a knife has attacked nursery school children in the french town of annecy. four are in hospital; two are in a critical condition. the police have described the alleged attacker as a syrian man with refugee status in sweden. it's not currently being linked to terrorism. the french parliament held a minute's silence when news of the stabbings emerged.

the country's prime minister, elisabeth borne is on her way to the scene. prosecutors in the us have reportedly told lawyers for donald trump, that he is the target of an investigation into his handling of classified documents at his florida residence. analysts say it is the clearest sign yet that prosecutors are moving closer to charging the former president. the bbc�*sjessica parker has more from washington. federal prosecutors have sent donald trump's legal team what's known as a target letter. that's according to us media. what's a target letter? well, it essentially informs someone they are the target of an investigation. in this case, the investigation into the handling of classified documents, the transfer of files to donald trump, the former president's mar—a—lago home in florida. this development, along with some other things that have been happening around the investigation, is being read as a potential

sign that a charging decision could be near, even an indictment. but we don't know that for certain. donald trump has always denied wrongdoing and, in a message he sent to supporters, he said nobody�*s told him that he is being indicted. donald trump, of course, is facing a number of potential legal battles as he tries to get back into the white house. he is currently the front runner, according to polls, in the race to become the republican nominee. and he has a support base, a hard—core support base, who are very loyal to him. but a question for the donald trump campaign will be, to what extent do these legal woes affect voters who are outside of that hard—core support base, and to what extent might they clash with the upcoming presidential campaign? elsewhere in the us, the latest republican to announce a bid for the presidency — is the man who served as donald trump's vice—president, mike pence. he's told a crowd in iowa that following the result of the 2020 election — donald trump had tried to put

himself above the constitution when he refused to accept joe biden�*s victory and tried to overturn the result. here's our north america editor, sarah smith. the land of opportunity... selling himself as a christian conservative, mike pence kicked off his campaign with a flashy video. that's why today, before god and my family, i am announcing i am running for president of the united states. not one image of donald trump appears in this launch video. but mike pence cannot escape from four years of servile loyalty as vice president. and mike pence is going to have to come through for us and if he doesn't, that will be a sad day for our country. right up until he refused to try to blockjoe biden becoming president. "hang mike pence," was the cry from rioters who stormed the capitol on the 6th of january. now defying donald trump and defending the constitution is a campaign pitch. i believe that anyone who puts themselves over the constitution should never be president

of the united states. and anyone who asks someone else to put them over the constitution should never be president of the united states again. mr pence is on much safer ground in iowa which will be the first state to pick a republican presidential nominee. also gripping and grinning with voters is florida governor ron desa ntis. senator tim scott, in fact, eight presidential candidates were all under the same roof last weekend. i want to say to you with deep conviction that god is not - done with america yet. applause. mike pence is already well—known to voters, and yet he is still trailing badly in the polls behind trump, the clear frontrunner. who knows? the more candidates like pence who get into the race, the more they split that anti—trump vote. and the easier they could make it for mr trump to win the nomination.

these voters did not get to hear from trump himself but skipping this event doesn't seem to undermine his support. can i ask you, have you decided who you are supporting for the nomination? who i'm supporting? trump. yeah? yeah. or desantis. i'd go for either one but trump first i think. well, i voted for president trump last time. i love his policies. the name—calling has got to stop. pence is definitely one - of the guys i'm looking at. i think he needs to be a little bit stronger but i think— if you are going to be i the president, you got to have a little bit - of the bulldog in you. mike pence will do what he can to attract attention. straddling a harley—davidson, if that is what it takes. in a very congested race, it's still candidates like him versus the absent donald trump, and it is the former president who still is clearly in the lead. sarah smith, bbc news, des moines, iowa.

and just before i go lets take a look at some incredible footage of one of the world's most active volcanoes — which has errupted in hawaii. here you can see the volcano, spewing massive flows of lava around the crater floor. it erupted yesterday, for the second time this year. now it's time for a look at the weather with ben rich. hello. some weather changes are now starting to take place. today really has been more of the same, more of the weather we've become used to. early low cloud burning back towards the east coast and then some warm sunshine. but, down to the south west of us, you can see this lumpy cloud, some showers and some thunderstorms looming. and just ahead of that over the next few days, a feed of much warmer and much more humid air. i think you really will notice the difference. now, this weather is not going to be extreme or certainly unprecedented for the time of year, but it will feel very different, much warmer, much more humid by day and by night, with the chance of

some thunderstorms. but it's back to the here and now. apart from the low cloud along the east coast, most of us will continue to see some sunshine, just one or two showers creeping across the isles of scilly. highest temperatures in the west up to around 2a or 25 degrees. tonight, we will see some showersjust creeping towards the south west of england. and here, an increasingly warm and humid feel, a sign of things to come. the overnight low in plymouth, around 13 degrees, still quite a lot cooler further north and east with some of this low cloud rolling into eastern and central parts of scotland and england, then tending to retreat towards the coast tomorrow to give some spells of sunshine. but there is still the chance of one or two showers down towards the south west, maybe in northern ireland later as well. and temperatures will be climbing. we could see highs of 22, 23 degrees in northwest scotland, but 22 to 27 for wales and for central and southern parts of england.

into the weekend this area of low pressure churning to the southwest of us will throw this weather front northwards and that will bring some hit and miss thunderstorms. there will be places that stay completely dry. there will be others that get a real deluge with hail and gusty winds likely to develop. and just ahead of that band of showers and thunderstorms, an increasingly warm and humid feel. temperatures could get to 29, possibly 30 degrees. and saturday night will be a very warm and humid one indeed. into sunday, those showers and thunderstorms perhaps becoming a little more widespread, spreading north and east, but there will still be places that avoid them and stay dry with patchy cloud and spells of sunshine. still pretty warm for many of us, maybe just a little bit cooler out towards the west.