this is bbc world news — i'm james reynolds. our top stories... china reports more deaths from the respiratory coronavirus as the first cases in europe are confirmed. the search for survivors continues after a powerful earthquake strikes eastern turkey. at least 18 people are dead. democrats conclude opening arguments in president trump's impeachment trial with a warning "he is a threat to democracy". i implore you. give america a fair trial. give america a fair trial. she's worth it. and — the massive swarms of desert locusts threatening the food supply in east africa.

chinese health officials say at least 41 people have now died from coronavirus. there are almost 1300 confirmed cases of the illness in china alone. state media are reporting that a doctor treating patients with the disease in the city of wuhan has also died. the first cases in europe have been confirmed in france — and australia has also confirmed a case. here's our medical correspondent, fergus walsh. ten days from now, on this waste ground in wuhan will be a brand—new hospital. the extraordinary pace of building — a sign of how seriously china is taking the threat from the new coronavirus. the prefabricated building will have 1000 beds. it is urgently needed because hospitals in wuhan are overwhelmed with potential cases.

the symptoms include cough, fever and breathing problems. a dozen cities have now been quarantined, affecting more than 30 million people. as you see, nobody here, it is absolutely empty. this should be the busiest time of year for travel and for hotels, but this one in wuhan is deserted. in downing street, borisjohnson hosted a reception to mark chinese new year. the government's emergency cobra committee also met to discuss the risk to the uk, which is considered low. we think that there's a fair chance we may get some cases over time. of course, this depends on whether this continues for a long time, but i think we should definitely see this as a marathon, not a sprint. there are still some key unknowns about this virus. how contagious is it? early case reports from china suggest people with no symptoms may be able to spread the virus.

how deadly is it? so far, around one in four confirmed cases is severe, and most of those recover. it seems less deadly than sars, which killed nearly 800 people worldwide. and what is the source? we're confident the virus jumped from animals to humans, but until the source is pinpointed — perhaps bats or snakes — there is a risk of completely new infections. this is the first image of the coronavirus. work is already under way to develop a vaccine. we can, potentially, move from years to up to 16 weeks to get a vaccine developed and for very early clinical testing, as long as all goes well. for now, the world can only wait

and see what impact china's control measures will have on the spread of this virus. fergus walsh, bbc news. earlier i spoke to sophia yan, china correspondent for the telegraph, about whether or not figures coming out of china were reliable. there is a mixed bag of sentiment. in the beginning, a lot of organisations including the world health organization commended china for updating so frequently. but if you look back at the dates, it is clear that the local wuhan government knew there were cases. people with symptoms of this mystery disease as far back as december. that means symptoms started showing up in late november. but they didn't mention to the world something was going on until december the 31st. since then there has

been a rapid increase of confirmed cases and deaths, which has doubled overnight to 41 people dead in china. it is something that is changing very quickly. in terms of the number of cases, there could be more than we know now. because there are disease modelling experts who have done these estimates. at imperial college in london, worst case scenario they think there could be as many as 10,000 cases in china. the government is trying to do as much as they can, but there is a capacity issue, the hospitals in wuhan. i have spoken to people who have turned up with symptoms and they have been turned away because there wasn't enough space, no beds and not enough doctors. so now china's response is they will build a 1000 bed hospital. in our report we saw dozens of bulldozers building rapidly, a new hospital in wuhan. if people see those pictures in china, would they be reassured by this swift action or scared by the scale of what is happening? it is a very interesting way in terms of how chinese people will see the situation.

they have been told that the ruling chinese communist party has their backs, through propaganda. so a lot of people i talk to say they are worried, but they believe the government will solve it. also, there is the different kinds of scandals they have face in the past. it is a population of 1.4 billion people, who are no stranger to food and health safety scandals, so this is a population quite scarred from the past. memories of the sars epidemic are still fresh. it is from 20 years ago, but people still remember what that really meant because of what the government did and that at the time they were covering up the true extent of what they were discovering on the ground. it is a very complicated set of emotions. they have been told to think one thing, but they have observed and experienced something else. sophia, where you are in beijing, is the virus the first topic of conversation with people when they meet up or when you go into the shops and so on?

it often is, a lot of the taxi drivers and transport workers are wearing face masks. it is the chinese new year, and the streets are empty which is a symptom of the holiday, but people are worried about going outside. they don't want to be in a crowd. people are cancelling their family dinners because they don't want to put themselves at unnecessary risk of infection. some cases have shown up in beijing but not at the scale of wuhan. even away from wuhan, people are worried about what this means for themselves, their children and their family. sophia yan. rescue workers in turkey are continuing to search for survivors after an earthquake in the east of the country killed at least 18 people. the 6.8 magnitude quake caused buildings to collapse and was felt in neighbouring countries. gareth barlow has more details. rescuers carry sui’vivoi’s out from the rubble.

the 6.8 magnitude quake sent buildings crashing to the ground and residents rushing into the streets. more than 30 people are feared trapped and more than 500 people have been reported injured. the exact moment the earthquake struck, captured live on turkish tv. amid the inky darkness, among ruined buildings, screams rang out as more than 400 rescue teams rushed to help survivors. dozens of after—shocks followed the main tremor, which was also felt in neighbouring syria, lebanon and iran. the region, 550 kilometres east of the capital ankara, is remote and sparsely populated so the true extent of the damage and fatalities could be slow to emerge. turkey lies on major fault lines and is prone to frequent earthquakes — around 17,000 people died in a massive quake in 1999. gareth barlow, bbc news.

impeachment time. democratic prosecutors in the us have finished setting out their case against president trump in his impeachment trial, arguing he has abused his power and obstructed congress. mr trump denies any wrongdoing and describes the process as a hoax, but one of the house impeachment prosecutors, or managers, congressman adam schiff, urged republicans to ensure new evidence is seen and witnesses are heard. president trump, by such conduct has demonstrated that he will remain a threat to national security and the constitution, if allowed to remain in office and has acted in a manner incompatible with self governments and the rule of law. that has been proved.

president trump thus warrants impeachment and trial, removal from office and disqualification to hold and enjoy any office of honour, trust or profit under the united states, that will be for you to decide. mr trump's legal team will open its defence arguments later on saturday. this is a mid an audio recording which could be damaging to their client. you heard their case. but do you know what it really comes down to, when ijust listened to manager jefferies at the end there, it was really trying to remove the president from the ballot 2020. we are what, ten and a half months out from an election? and they don't trust the american people to make a decision. and there was such a state of urgency in moving this impeachment proceeding over that nancy pelosi sat on it for 33 days.

you don't get it every way, and that's what they're trying to do. so look, tomorrow morning, we start our case. for more on the impeachment trial — have a look at our website. there are videos and articles, live coverage and everything you need to know to bring you completely up to date. that's all at bbc.com/news. or you can download the bbc news app. the pentagon now says 3a us servicemen suffered concussion and traumatic brain injury when iran attacked american bases in iraq this month. they were attacked in retaliation for the us killing of the iranian general qasem soleimani. president trump had originally said that no americans were injured and later suggested that some had merely suffered headaches. chris buckler in washington has more. you can imagine democrats and his opponents' reaction to the idea that these were headaches, when it turns out that some of them had suffered traumatic brain injuries. there is a range of different injuries suffered by those troops, but the idea that after that strike by iran in iraq that there would be

this idea that no one had been injured to then go to the idea that 3a had been injured, and that 17 were so badly hurt that they had to be transferred to germany for treatment. that is something that has raised a lot of concern and alarm in the united states. if we look at the 17 people who have been moved to germany, eight have returned to the us but there are nine still there, still receiving treatment and still being assessed. it gives you a sense of the level of their injuries. those don't sound like headaches, why the turnaround ? it is a very good question and one that is being asked. let's put the strike into some kind of context. it was after the killing of general soleimani, which caused real tension between iran and the us. we then had this strike on a us base and at this stage there was a real concern that potentially conflict

could arise at that stage. there was an audible sigh of relief here in washington whenever it came out that there were no us injuries. because it was felt that that could potentially relax those tensions a little bit. there will be people asking questions about whether that was deliberate and what it says about the iran strategy as far as the us is concerned going forward. what democrats are really saying, if president trump is talking about the idea that people had suffered headaches when they had suffered traumatic brain injuries, what does that say about their commander—in—chief and they say he owes an apology to his soldiers. that is an interesting point, how would you assess president trump's relationship then with the military that he commands? he is very close to the military, and you would argue from a republican point of view that the military is a key source of his base and there are people who fall in behind him very strongly. he likes to be seen as a commander—in—chief that has

the support of his troops. we have seen some foreign trips by the president to show he is alongside them, like thanksgiving the year before. but there will be some asking the question, from a democratic point of view, that this commander—in—chief needs to take issues like this seriously. there will be this wider question as to what the iran strategy is. yes, we had the strike against an iranian general, who undoubtedly was somebody causing concern for america. but last year he pulled out of a strike after an american drone was downed in the gulf. it is not clear exactly where president trump sits on this. he has aggressive words for iran, but sometimes he wants to avoid conflict and that might have been the case in this particular instance.

stay with us on bbc news, still to come... ahead of this weekend's grammy awards, we take a look at country music's complex relationship with race. donald trump is now the 45th president of the united states. he was sworn in before several hundred thousand people on the steps of capitol hill in washington. it's going to be only america first. america first. demonstrators waiting for mike gatting and his rebel cricket team were attacked with tear gas and set upon by police dogs. anti—apartheid campaigners say they will carry on the protests throughout the tour. they called him the butcher of lyon. klaus altmann is being held on a fraud charge in bolivia.

the west germans want to him extradite him for crmes committed in wartime france. there he was the gestapo chief, klaus barbie. millions came to bathe as close as possible to this spot, a tide of humanity. it's believed by officials to have broken all records. this is bbc news, the latest headlines: a massive campaign is underway in china to try to stop the spread of a new respiratory virus. as the number of cases increases, the virus is spreading to other parts of the world with europe and australia now confirmed. democrats have concluded their opening arguments in donald trump's impeachment trial with a warning he is a threat to democracy and would abuse his power again if he's not removed from office. huge swarms of locusts — like something out of the old testament — have been sweeping through large parts of east africa,

destroying crops, and threatening the food security of the region. one of the worst affected countries is kenya, which last dealt with a plague of locusts on this scale half a century ago. 0ur africa correspondent anne soy reports. from a distance, it looks like northern kenyan is burning. but these are swarms of desert locusts, spreading like wildfire across the horn of africa. just one swarm can have more than 200 million insects. these are tiny creatures flying above me. they look harmless, but if you can see, hundreds of millions of them are flying at the same time, the amount of destruction they can cause is unimaginable. ali tells me this is the second invasion of locusts he has witnessed in about 60 years. this time, he's lost nearly

all his maize and bean crops. translation: it's painful, we had no rain for several years. when it did finally rain last year, we were so happy. but then these insects have come and destroyed our crop. we have incurred large losses. he says he brought dozens of people here to help ward off the invasion. elsewhere, gunshots, tear gas and whistles. people and governments across the region are desperate to save plants from being devoured. conservation groups are helping track the movement of the swarms. the kenyan and ethiopian governments are using aerial spraying to try to kill the insects, but with little success.

a region devastated by years of doubt seems to have recovered when it received unusually heavy rains. but that has now brought this misery, leaving communities on the edge. anne soy, bbc news, moyale. tennis now and day 6 at the australian open in melbourne where spectators are gearing up for some major fixtures after an astonishing set of results from day five. let's speak to the bbc'sjohn watson. who's in melbourne. john, what have we got today? you have to feel for the players, rafa nadal, angelique kerber and carolina nicholas goepper, who have to follow what we witnessed play out yesterday. serena williams out, naomi 0saka out and karolina pliskova is also out. good news, if

you are a fan of rafa nadal, beaten finalist last year, he is on top in his match, so he appears as though he will progress. we talk about the matches today, as far as raff is concerned we know about his pedigree and we know how desperate he is to wina and we know how desperate he is to win a second australian title, but he will face nick kyrgios in the next round. nick kyrgios is in action late on. there is some history between these two. no love lost. rafa nadal said nick kyrgios lacked a bit of respect for his sport and himself. nick kyrgios said rafa nadal is super salty. super salty? not a name i have often heard. is there a changing of the guard in women's tennis? serena

williams out, 15—year—old coco gauff through? yes, it felt that yesterday. we often talk about it, in the men's game, when will the younger players come through and challenge the established order? it felt like a defining moment in tennis yesterday. serena williams, 38, chasing that elusive 24th grand slam title. it won't be coming this year but then an hour later we see naomi 0saka going out, the defending champion going out to the 15—year—old coco gauff. it was an astonishing day in tennis and it is ha rd astonishing day in tennis and it is hard not to read into that. we now with rafa nadal in action, roger federer was given a tough work—out yesterday as well. it feels as though something is brewing at this year ‘s tournament. if what we have seen play out this first week is anything to go by, you won't want to ta ke anything to go by, you won't want to take your eyes off it in the second

week. but those men are into their 30s now, you asked the question inside your answer, i will send it back to you, what about the younger man, when are they coming through? we have dominic team in action, on the cusp of going through. he is one of only 228—year—olds playing at the moment to have made a grand slam final outside the main players. dominic of austria and daniil medvedev, another player in action later on. he reached the us open final last year. he pushed rafa nadal closer over five sets. if you are looking at anyone, it is those two. i was talking to boris becker last week. he won a grand slam at 17. daniil medvedev, there is a name for you. we will remember those names, thank you.

millions around the world will tune in to the grammy awards this sunday. as the recording academy grapples with how to reflect the diversity of the music industry — we turn to the relationship between race and country music. in 2018, rapper lil nas x released his hit single, old town road. billboard removed the song from its country charts — at first — saying it wasn't "country enough". some critics said race was a factor. cathy mcclay has been to nashville, the heart of country music, to find out more. country music is giving an opportunity for you to tell a story. the truth is, when you think about country music, you probably don't picture people like jimmie allen. in a room full of country artists, there would be about two or three other people that look like me. i was excited and sad to be the first black artist to launch a number one in country,

just because of the year. it is 2020, 2019 at the time and country stemmed from a black chart. world's hose inductees were inducted in 2000 and the first country black star who was inducted in 2005. while this part of country music history has usually been concealed, now more people are paying attention. country music, is itself born in as much african—american history as it is in what we think as white, rural southern history. documentary maker, ken burns looks at the roots of country music. rhiannon is one of the artists featured in the series and she has spent her career working

to make sure those roots are not forgotten. to make sure those roots the banjo became a well— known plantation instrument, the first 100 years of its existence, it was known as a black instrument. how did it get into the white community? in the 18405, entertainers looked at the banjo and they went, that is pretty cool. it was the first really american cultural export 100 years before rock and roll. one of the reasons we don't talk about this is because they were doing it in black face, as part of the minstrel show. these artists are breaking barriers in country music, but the industry still has a long way to go in the area of diversity. for me, it is all about representation. if country is the route you want to take, come on in, more on our website. and i am on

twitter, please stay with us. hello. high pressure may well have kept much of the uk dry for the past week, but for the second half of the week, it's kept much of the uk cloudy, misty and murky. it's all set to change, though, but that change will come first with a spell of rain, spreading east across the uk on sunday, then after that, colder, brighter, but showery and some wintry showers and places as well. so here is what is happening. higher pressure is on the way out during saturday. by sunday, this weather front sweeps east with rain, and it's behind that we pick up the breeze, bring back some sunshine, but bring showers in that will give some snow in places, and particularly sunday night into monday morning, as we will see in a moment. but for the start of the weekend, for saturday morning,

on the chilly side towards the far south of england, maybe a hint of frost in the colder spots, but mostly frost free, plenty of cloud, drizzly misty, murky in places. something a bit brighter that migrates northward across england and wales during the day, but even behind that, thicker cloud comes back with some patchy rain and drizzle. could see a bit of that towards parts of northern ireland and certainly into scotland, especially in the west. quite windy towards northwest scotland, rain turning more persistent in the western isles to end the day, and that is the weather front we saw earlier. this is the rain from it, pushing into northern ireland overnight and into western scotland as well. another frost free start to the day on sunday. so, sunday, then, is all about the rain moving east, but also the change to colder conditions behind. a marked change in colour here showing up. that's the colder air moving in. and it's within that there will be brighter skies for early next week, but also these showers and a chance of seeing some snow showers in places. so, as we go on through sunday, we will see that rain pushing east to all areas, clearing quite quickly from northern ireland, later in the day reaching the far southeast of england. it may brighten up a bit to its western parts of england and wales, but the best of the sunshine

on sunday will be in northern ireland and scotland, although there may be the odd shower following in behind. take a look at the temperatures, a much colder feel to things once that rain has moved on through. a windier day across the board as well. rain clears the southeast on sunday night, but then this next system comes in overnight and into monday morning, and there is a chance that that northern ireland, northern england, especially scotland seeing snow to relatively low levels early on. icy in places that don't get caught out by that. on monday, the snow is coming in towards the south and west, wintry on hills in the north and another breezy day. it will be a colder start to next week, but then by the end of the week, turning milder again.

this is bbc news, the headlines:

china has launched a massive campaign to try to stop the spread of the new respiratory virus that has reportedly killed up to 41 people. new cases of the virus have been found in europe with three people infected in france. the virus has also spread to australia. a powerful earthquake has struck eastern turkey, killing at least 18 people and damaging buildings near the epicenter of the tremor. at least 30 people are believed to be trapped under the rubble. the quake was strong enough to be felt in neighbouring countries. democrats in the us have finished setting out their case against president trump in his impeachment trial arguing he abused his power and obstructed congress. they warned that mr trump is a threat to democracy and would abuse his power again if he was not removed. mr trump denies any wrongdoing and describes the impeachment as a hoax.