welcome to bbc news, broadcasting to viewers in north america and around the globe. my name is duncan golestani. our top stories: separatist clashes flare up in yemen, raising concerns that the country's fragile humanitarian situation will become worse. a day of mourning in kabul. more than 100 people are now known to have died in saturday's suicide bombing. russia's opposition leader, alexei navalny, is released after he and dozens more are arrested at a protest rally in moscow. and the grammys are under way in new york. attendees wear white roses in solidarity with victims of sexual harassment. hello and welcome to the programme.

aid groups say new fighting in southern yemen has made an already bad humanitarian situation worse. at least ten people were killed and dozens of others injured in the port city of aden on sunday during fighting between former allies in the civil war. the yemeni president abdrabbuh mansour hadi, who's based in saudi arabia, has ordered an immediate ceasefire. bill hayton reports. this is a war within a war. the southern city of aden — a battlefield between factions who once fought together against the houthi rebel movement. the former allies are now divided over the future of the country. these men are waving the flag of the former south yemen, a country that ceased to exist nearly 30 years ago, when it merged with north yemen. now, some want it to split again.

translation: we want a civilian government, a government of law, a government made according to the principles of the southern transition proposal. these southern separatists are a faction backed by the united arab emirates. they want the government to resign. the internationally recognised government is backed by saudi arabia, and refuses to go. the two now have managed to agree a truce. translation: we are asking all fighters to come back and improve our defence, and provide a real administration, that assures everyone justice and equality. yemen is already divided between government and rebels. these secessionists want another division, back to the old north—south border. it is not clear how much support they have. in aden, the fighting seems to have subsided. but the tensions remain, and the peace may not last long. we have some breaking news. there

appears to be an attack by militants in the afghan capital, kabul, it appears to be the highest military academy. that is west of kabul‘s city centre. an eyewitness said explosions began at around five o'clock local time and lasted for at least one hour. other reports say small arms fire was also hurt. we will bring you more on that as we get it. more than 100 people are now confirmed to have been killed, and 230 injured, in saturday's suicide bombing in the afghan capital, kabul. the country has been observing a day of national mourning after one of the worst attacks in years. from kabul, secunder kermani sent this report. hospitals across kabul have been at full stretch, trying to treat the huge number of wounded. this taxi driver was just metres away from the explosion. translation: there was smoke,

shrapnel, and burning smell everywhere. everyone looked terrified. there were dead bodies and injured people covering the street. the taliban packed this ambulance with explosives. the attacker detonated them close to a police compound on a busy street. over the last year, kabul has been repeatedly attacked. it used to be one of the safest places in the country. now, it feels like one of the most dangerous. the taliban and the islamic state group both, at the moment, seem to be focusing their efforts on targeting the capital, kabul, rather than trying to capture rural territory from the security forces. they know that attacks here will spread fear, will generate headlines, and will undermine the government. i asked the head of the afghan intelligence service about rising public anger with his forces' failure to prevent so many attacks. we are using all our assets, all our our —

whatever possibility and resources in our hand to prevent it. but you cannot prevent 100% of the attacks. meanwhile, the families of victims line up outside hospitals, desperate for news. this man has been going from morgue to morgue, trying to identify his cousin's corpse. translation: i've seen so many dead bodies. all the morgues are full of them. they're all burned so badly, you can't even recognise them. last year, more than 2,000 civilians were killed injust nine months across afghanistan. this year looks set to be just as deadly. secunder kermani, bbc news, kabul. thousands of people have demonstrated in cities across russia in support of calls by the opposition leader,

alexei navalny, for a boycott of the presidential election in march. police in moscow detained mr navalny as he took part in a rally in the city centre. he's now been released without charge. the bbc‘s steve rosenberg was at the protests and witnessed mr navalny‘s arrest. it isn't easy taking on the kremlin. alexei navalny has been jailed three times in the last year. he has been barred from the upcoming presidential election. so today, mr navalny called his supporters onto the streets. alexei navalny is russia's most prominent opposition figure, and president putin's most vocal critic. he has been barred from running in the presidential election. he is now being arrested by police. this was no "softly, softly." we saw mr navalny surrounded by police. seconds later, he was thrown onto the ground. then, the politician vladimir putin

cannot bring himself to mention by name was dragged into the police bus. his supporters called on voters to boycott the election. all the candidates, they believe, are hand—picked by the kremlin. they are candidates that putin approved, and we do not have candidates that we want to have. there is little doubt that vladimir putin will walk this election, with the help of russian tv, which maintains his macho image, portraying him as a cross between action man and father of the nation. and mr putin enjoys far more airtime than any of the other candidates. but the kremlin still needs people to come out and vote for vladimir putin. that is why calls to boycott the elections are making the russian authorities nervous. steve rosenberg, bbc news, moscow.

there's new doubt surrounding the security of so—called cryptocurrency exchanges, which handle digital cash systems like bitcoin. one ofjapan‘s biggest exchanges, coincheck, has offered to refund half a billion dollars in currency stolen by hackers on friday. japan is one of the world's most enthusiastic traders in crypto currencies. this report by rhodri davies contains flash photography. as many as 10,000 businesses injapan are said to accept cryptocurrencies. this virtual heist is bound to increase concerns about their security. at the centre of this, tokyo—based coincheck, one of the largest digital currency exchanges injapan. it said on friday it had been hacked, resulting in the loss of $500 million — the biggest ever. translation: there are some troubles in one of our systems. i am sorry for causing much trouble to clients and relevant parties. cryptocurrencies don't

have a centralised register. their strength, in theory, comes from having a connected, distributed register called a blockchain. a transaction is ordered by putting the currency into groups, call blocks, which link to and verify the previous block. the stolen coincheck assets were said to be kept in a hot wallet, which is part of the exchange connected to the internet, as opposed to a cold wallet, where funds are stored securely offline. coincheck said it will issue full refunds to all of the 250,000 of its users who have become victims of the hack. but will that be enough? translation: my total losses are abouti million yen. i was shocked. i'm finding it difficult to trust virtual currencies anymore. others probably will no longer invest in them.

translation: money cannot be kept in insecure places. i won't consider investing unless there's a reliable platform providing such services. world leaders meeting in davos last week issued fresh warnings about the dangers of cryptocurrencies, suggesting they risked being used for illicit activity. will the coincheck theft now prompt legislators to act? rhodri davies, bbc news. there's been an outcry in mexico city over the disappearance of a teenage student who was arrested by police on tuesday. hundreds of people carrying placards called for the return of 17—year—old marco antonio sanchez. he had been out taking photographs but was arrested and accused of stealing the camera. the bbc‘s tim allman reports. where is marco? the question being asked by his family and friends. a teenager described as playful, a

joco, very good—natu red. teenager described as playful, a joco, very good—natured. he has been missing for a week now. he was last seen being bundled into a police van after being accused of stealing a camera. his family are desperate for a nswe i’s. translation: the way my nephew was arrested, and the brutal way he was beaten, that he did not arrive where he was going to, to blame him for that or accuse him of something he wasn't doing. this isn't the first timea wasn't doing. this isn't the first time a young person has mysteriously disappeared, nor is it the first time the police are being blamed. officers in several mexican states have been accused of abuse, torture, and extorting money from students and extorting money from students and their families. is and extorting money from students and theirfamilies. is marco and extorting money from students and their families. is marco antonio sanchez the latest victim of deadly police corruption? translation: where is he? people do

not just disappear. translation: where is he? people do notjust disappear. that is a lie. they took him. the immense pain that this means for families, they took him. the immense pain that this means forfamilies, for all of us, for those of us who have children in the city, who are growing up you, who has the ultimate responsibility? who allows this exercise of corruption, impunity, violence? two officers involved in marco's arrests have been detained, but the fate of marco antonio sanchez remains a mystery. tim allman, bbc news. stay with us on bbc news, still to come: tributes to the father of flat pack furniture and founder of ikea who's died at the age of 91. the shuttle challenger exploded soon after lift—off. there were seven astronauts on board, one of them a woman school teacher. all of them are believed to have been killed. by the evening, tahrir square, the heart of official cairo, was in the hands

of the demonstrators. they were using the word "revolution". the earthquake singled out buildings and brought them down in seconds. tonight, the search for any survivors has an increasing desperation about it as the hours pass. the new government is firmly in control of the entire republic of uganda. moscow got its first taste of western fast food as mcdonald's opened their biggest restaurant in pushkin square. but the hundreds of muscovites queued up today will not find it cheap, with a big mac costing half a day's wages for the average russian. this is bbc news. the latest headlines: aid groups in yemen say new fighting in the port city of aden has made an already bad humanitarian situation worse. at least ten people died

in fighting on sunday. afghanistan has been observing a day of national mourning. more than 100 people are now known to have been killed in saturday's suicide bombing in the capital, kabul. the river seine in paris has risen still higher on sunday, though the authorities believe the city will now be spared really major flooding. still, the waters are six metres higher than usual and the clean—up job will take weeks. kevin connolly is in paris. predicting extreme weather is always problematic, of course. the river is continuing to rise here, but the maximum point it's expected to reach is now not as high as it was a couple of days ago, and it's not thought likely to reach the levels we saw, for example, in 2016, when paris was flooded. you can see there the boats tied up because with the river seine at at these levels they just don't fit under the bridges. but the people of paris and tourists

are adjusting to this new city landscape. the police here have issued a warning that you shouldn't go canoeing or swimming in the river — not a warning that most of us need. it's been a winter of exceptional rainfall in france — some regions have seen levels that they've not seen since the 1950s. the peak of the river level here in paris is expected to be reached sometime between sunset on sunday night and dawn on monday morning. but the consequences of this kind of flooding, especially in small towns further out down the seine valley, will take a very long time to resolve. people will be living with the consequences of this very heavy rain, this exceptional swollen, surging riverfor weeks, if not months. the world of popular music is taking a moment to pat itself on the back with the 60th annual grammy awards. many of the stars in attendance

at new york's madison square garden are wearing white roses in a display of solidarity with the anti—sexual harassment me too movement. so far, kendrick lamar has been the big winner on the night. he's picked up four grammys so far, including best rap album. bruno mars has three awards so far, among them best r & b album. and ed sheeran has won two grammys, including best pop vocal album. let's cross live to new york where we can speak to the bbc‘s nada tawfik. #metoo message crossing from the red carpet to the stage tonight? yes, and we saw a very powerful performance by kesha to her song praying, it had some strong lyrics there and at her former producer dr luke who she accused of sexual

assault. he has denied that she has beenin assault. he has denied that she has been ina assault. he has denied that she has been in a legal battle with him several years and what we had here at the grammys with a number of women on a number of artists, saying that they stood with her, you have cyndi lauper, bb rex, andrew day, camila tobago, just a few others. they stood with her in the performance and i think it will be one of those moments that are talked about in grammy history of quite a while. it actually brought some of the audience to tears, kesha herself was visibly emotional afterwards. and again, people kind of introduced the performance and out of it spoke about the need to ensure that women have equal pay, safe work environment and equal environment for opportunities in the industry. it is interesting but the music industry has been slightly behind hollywood and tv in terms of these issues. yeah, absolutely, ithink a

lot of artists have kind of shied away from talking about it out in the open but when i was on the red carpet i asked a lot of artists about this and they said if you listen to our music these things that we have addressed in music and it took the grammys to get everyone together. our first visible it took the grammys to get everyone together. ourfirst visible moment together. ourfirst visible moment to speak about this issue. i spoke to speak about this issue. i spoke to one country artist, a few of them, named lady entered a long, and for goodness sake, they said our name is lady antebellum, we have a very powerful woman behind us and we stand for quality and these issues and it really takes a moments like grammys and the momentum we have seen grammys and the momentum we have seen behind the #metoo movement to show that when an industry speaks about these topics, it does help advance the discussion that much more and so a lot of people spoke to the need to be more vocal about that. just briefly, who is celebrating tonight? kendrick lamar

is having a very good night, he has five grammys, he won three in the preshow and then best rap performance and best rap album. also bruno mars, he won first song of the year, a songwriter‘s award, and alessia cara won best new artist. so we had a very diverse group of nominees this year, the most we have seen nominees this year, the most we have seen for the top prizes, and quite a while, and it comes after the grammys really had to push back from criticism that they have ignored the influence that rap and hip—hop has had on the industry and on pop culture. thank you very much. here in the uk, the prime minister theresa may is coming under new pressure about her leadership and her policy on brexit. our political correspondent chris mason reports. if it felt a little bit chilly for the prime minister at the world economic forum

in switzerland last week, well, the politicalforecast is not looking much sunnier for her now she's back home. some of her mps are fed up with what they see as her merely muddling along in office. and on top of that, some of those who campaigned for brexit fear it being diluted to such an extent it never really properly happens. it is very complicated and that is one of the reasons why i have advocated and supported compromise, but there is only so far you can go with compromise without ultimately finding yourself in a position where you are selling out all the people who voted to leave. the government says it is committed to delivering brexit, but you know when a party is falling out with itself when senior figures, like this man, who is effectively the prime minister's deputy, have to say this. the conservative family, left, right and centre, because we're a broad church, needs to come together in a spirit of mutual respect — you know, there are differences in any broad church — and look at what the bigger picture is showing.

the next stage of brexit negotiations is about what happens immediately after we formally leave the european union at the end of march next year. the next stage is about what happens after we formally leave the european union at the end of march. for around two years, freedom of movement will continue. the government will introduce a registration scheme to new arrivals. the rights of eu citizens here and uk citizens in the eu will remain the same, and eu laws will continue to apply. the labour leader is facing his own divisions in a party that predominantly voted to remain in the eu, and many whose supporters, polls suggest, would like a second referendum, butjeremy corbyn says no to that. what we asked for and demanded in parliament has been a meaningful vote in parliament at the end of it. so mps could... host: i thought the people decided, not parliament. what happened with this bill was it was an undemocratic power grab by the government. we are not asking for a second referendum. and you're not going to?

tomorrow, the rest of the eu will get together in brussels to sign off its approach to the transition or implementation period. brexit negotiations are about to crank up again. a french climber stranded on one of pakistan's highest peaks has been flown to hospital after a rescue operation. but the search for her polish climbing partner has been abandoned. elisabeth revol and tomek mackiewicz were in northern pakistan on friday. tim pattinson reports. a dramatic rescue operation on one of the world's highest and most deadly mountains. an elite climbing team was rushed to the rescue after two climbers became stranded. as part of this daring high—altitude mission, the team was dropped more than 1000 metres below the lost climbers' last known position. they scaled the mountain overnight, eventually finding the french climber elisabeth revol alive. a friend and fellow mountaineer described the rescue attempt. they started their incredibly heroic

and extraordinarily fast seven—hour climb towards her. she was able to start moving, and that is what, perhaps, saved her, because had she stayed where she was, it's not certain at all whether they would have been able to reach in time. elisabeth revol has now arrived in the capital, islamabad, and is being treated for frostbite. but the whereabouts of her climbing partner remain. tomasz mackiewicz had become separated. he was reportedly suffering from frostbite and snow blindness. now the search has been called off due to bad weather and treacherous conditions. tim pattinson, bbc news. the man who founded ikea and revolutionised the furniture industry, ingvar kamprad, has died at the age of 91 at his home in southern sweden. joe lynam reports. ingvar kamprad can safely be described as a retailing genius. born in 1926 in southern sweden, he started selling matches aged

five, then seeds, and then pencils. at 17, he formed ikea, named after his own initials and the area where he was born. now it's probably the best known furniture store in the world with more than 400 giant shops and annual sales of £30 billion. kamprad was inspired to create the idea of flat—packed furniture when watching someone remove the legs of a table to fit into a customer's car. he disowned his previous support for far—right parties in sweden during the war and lived a modest lifestyle — his house and possessions did not reflect his wealth. translation: i don't think i'm wearing anything that i haven't bought at a flea market. that's because i want to give a good example. if we are going to be conscious about our economy, one can't just talk about it, one has to show that. the genius of ingvar kamprad was to persuade millions of people to come to his giant superstores, pick out products that they may like but not necessarily need,

and then collect it in person from the warehouse and, crucially, assemble the whole thing at home. we are used to it now, but at the time it was laughed at. and today, one famous designer tipped his hat at what ingvar kamprad had achieved. he actually tapped into the taste that every ordinary person wanted. so they could get this new wave of modernity that was coming about in the 1950s, and he managed to trap it and make it available to everybody. ikea said ingvar kamprad, who was involved with the business right up until recently, would be much missed by his family and warmly remembered by the company's employees worldwide. you are watching bbc news. hello there, good morning.

winter is set to return this week but nothing too serious, nothing out of the ordinary. what was unusual was the temperatures we had over the weekend — 15 degrees in that mild south—westerly on sunday. there's colder air to come down from the north and it comes in initially behind this weather front here. that is moving southwards. it's been bringing the rain that we've had across the northern half of the uk. and that rain, on monday, is moving south across england and wales. behind it, we're starting to see some colder air already, by the morning, in scotland. maybe some wintriness over the tops of the high ground, as those showers come in. one or two showers coming in to the north of northern ireland. much drier by this stage after some heavier rain overnight. here's the rain, though, across the north—west of england and wales, where it could be heavy over the hills. south of it, still some gusty winds for a while, but very mild air — temperature 9—10 degrees, early in the morning. get a bit of sunshine in the south—east and those temperatures could rise a few degrees higher in the morning — that's ahead of the rain. here's the rain. it's moving southwards and,

as it moves southwards, the rain becomes lighter and more patchy but it will drop the temperatures across southern areas in the afternoon. we get some sunshine following behind that in wales and the midlands. and further north, some sunshine, a scattering showers, and again, just cold enough to give us some wintriness over the higher ground in scotland. it gets cold overnight where we have the clearer skies across southern and eastern parts of england, in particular. there could be a frost returning by early tuesday, but we start with some sunshine across most of england and wales. gradually through the day, the tendency is for things to cloud over more and more. a bit of drizzly rain coming into the far south—west. but the wetter, windier weather is in the north—west of scotland. in between, it looks like it's going to be largely dry. but temperatures 6—9 degrees — that's near normal for this time of the year. it may start to feel colder around the middle part of the week. these weather systems do move through. this one the more significant one, coming down from the north—west, sweeping down across the uk, and then it introduces another bout of colder air that will sweep across all areas. the wind direction changes once again.

so we're going to find more in the way of showers on wednesday. we've still got this band of rain on the weather front to clear away from southern areas. and then it's sunshine and showers. but those showers will be more wintry — notjust in scotland but as far south as wales, perhaps into the peak district as well. nothing serious, but a change from what we've been seeing. and it will feel colder as well, given some strong to gale force winds — 11—5 degrees typically across the north. wind direction changes to a bit more of a northerly, so more inland areas will be more sheltered so inland parts probably dry on thursday. the showers more likely around exposed coasts. but again, it will feel colder in the wind. this is bbc news. the headlines: aid groups in yemen say new fighting in the port city of aden has made an already bad humanitarian situation worse. at least ten people were killed on sunday during fighting between former allies — separatists who want independence for south yemen, and forces loyal to the saudi—backed government. afghanistan has been observing a day of mourning on sunday.

more than 100 people are now known to have been killed in a suicide bombing in kabul, on saturday. we're now getting reports of a new attack in kabul, on the marshal fahim university, the country's highest military academy. police in moscow have released the russian opposition leader, alexei navalny, after detaining him at a rally. his lawyer says he will have to appear in court, where he may face charges. now on bbc news, dateline london.