china has launched a huge 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. the president himself has called the entire process a hoax. republicans will still begin their defence.

britain's foreign secretary dominic raab has described america's refusal to extradite a woman charged with causing a british teenager's death as "a denial ofjustice". harry dunn died after his motorbike collided with a car being driven on the wrong side of the road by anne sacoolas last august. duncan kennedy's report contains some flash photography. it was last august that harry dunn died here, and today the scene were still framed by the caring tributes of those who love them. an american woman has been charged with causing his death by dangerous driving. she had left this nearby american intelligence base moments before the collision but two weeks later left britain, claiming diplomatic immunity. now the united states has refused to send her back, something harry's mum says it is difficult to accept. gives us more determination to carry on. it is just another

hurdle, we have come across lots of things is the 4th of october and we will get over this one eventually. this is a setback, not the end of absolutely. the decision to block the extradition of anne sacoolas was taken by mike pompeo, the us secretary of state who insisted she was covered by diplomatic immunity at the time of the accident. it is five months since harry died, and his family had been expecting that it was for the american courts to decide whether to extradite anne sacoolas and now that the american government has stepped in they see that as a setback and say that their fight will go on. tonight, the done family's local mp, business secretary andrea leadsom said the family had the full support of boris johnson end their campaign. the prime minister is very much on the side of the family in their desire to see justice done for harry, and all of us in government are working towards that end. harry's family

said they had to set aside their grieving to pursue this cause, and insist they won't be silenced. duncan kennedy, bbc news. now on bbc news, it's our world. hevrin khalaf was a rising star in kurdish —controlled northern syria. the region where the kurds had been the key ally of the us in the fight against so—called islamic state. then, last october, it all changed. the worst mistake that the united states has ever made, in my opinion, was going into the middle east. we are bringing ourfolks back home. days later the turkish military invaded and jihadi militias spread across the region.

why was hevrin khalaf killed? i'm yalda hakim, and i've come to northern syria to investigate. in north—east syria, an apparent oasis of stability and hope, recovering after eight years of civil war and trauma that have cost hundreds of thousands of lives.

hevrin was part of a movement to rebuild syria as a democracy.

aged 3a, hevrin had become the leader of the newly launched future syria party created to play a key role in spreading democracy, bringing together communities ravaged by terror and war. reaching out to arabs in territory run predominantly by syrian kurds. travelling across huge areas recently liberated from so—called islamic state, hevrin spread a message of empowerment and hope. do you wish you'd encouraged her to stay away from those issues?

the chance to build a democracy had been won through a hard and costly victory over is. from 2016 the mainly kurdish stf had been the us coalition‘s key ally in defeating the so—called caliphate. while the turkish military was unhappy with the increasing power of the kurds in the region. the worst mistake that the united states has ever made in my opinion was going into the middle east. it is a quagmire. up to close to $8 trillion. and we're bringing folks back home. just days after president trump's surprise announcement, the us force of 1000 troops pulled out, while turkey amassed its forces for an imminent assault. the aim?

to remove kurdish military forces on its southern border, forces that president recep tayyep erdogan called terrorists. fahad ramadan had just started working for hevrin as a driver. at 22, he had recently come back from fighting is. what did you think when president trump announced that the americans would

no longer be supporting the kurds? on october 9th the turkish military started their assault. civilians fled border towns and the wounded started to fill the hospitals. and it wasn't just turkish regular forces. groups of mostly jihadi fighters, bitter enemies of the kurds, and calling themselves the syrian national army were being backed by the turkish military to do the fighting on the ground. they were advancing

deep into northern syria. ahrar al—sharqiya was one such group was arabs from a part of eastern syria 110w controlled by the kurds. their cameraman was posting updates as they went. early in the morning of october 12th, hevrin and fahad were driving along the n4 highway, a key road controlled by the kurds, running just 30 kilometres parallel to the turkish border. the situation was changing fast.

ahrar al—sharqiya had set up a roadblock on the n4 highway

ahrar al—sharqiya had shot up their car as they were trying to drive through the roadblock. fa had was killed. later that morning, the militants withdrew. leaving an armoured car, and hevrin khalaf‘s body metres away.

i've come meet to a group of volunteers that have been documenting abuse and war crimes since the days of is. they've been investigating the murders of hevrin and fahad. this woman is leading the investigation.

in the video, you can just make out a woman's voice. she is saying, the arabic words for "leader of the party". this is the last time that anyone had heard hevrin‘s voice. it must have been difficult for you to read the report in detail because you knew hevrin.

just like they shot her in a frenzy, completely. it's just difficult to look at this image of a young woman. with her whole torso, the upper part of her torso, herface is blown off, and parts of her scalp. it really is a horrific, horrific image.

mizgin and i are driving west on the na, the highway on which hevrin and fahad were killed. and is this road considered safe? mizgin is taking me to meet other victims of the advance by the turkish military and theirjihadi militia allies. and do you know how many people are in this camp now?

there are 4000 arabs and kurds in this camp. most made the journey from towns close to the turkish border. many on the same day that fahad and hevrin were killed. and you've had family members who have been killed? would you be able to go home? many families aren't returning home, because of thejihadi militias like ahrar al—sharqiya now occupying their towns. but some have tried, and most want to keep their identities hidden.

when you went back to your village, what happened? and the militants who are inside your village, what were they doing and saying to the people? do you think you'll ever be able to go back home? i wanted to find out more about thesejihadi groups backed by turkey, and who was responsible for hevrin and fahad's deaths?

some people have been gathering information about the backgrounds of these militants, who are now fighting for turkey, and say they've got disturbing evidence about the pasts of these individuals. i've come to the hawar news agency. journalists here have been investigating the backgrounds of some 70 fighters involved in the invasion. al nusra is the main al-qaeda group in syria. it's been accused of torture, child abduction and summary execution, but it's notjust al nusra fighters. in your list of 70, you also have someone

there who is believed to have been involved in the killing of hevrin khalaf. can you tell us a little bit more about how you got that information? the journalists here believe that ahrar al—sharqiya is led by this man. it seems that, just two years ago, the leader of the group that killed hevrin and fahad had been part of is or daesh. now fighting with turkey, a member of nato. how do you know that he's part of daesh?

is controlled much of north—eastern syria with a rule of terror for three long years. killing opponents and enforcing the strictest form of islam. their syrian capital, raqqa, was the scene of countless crimes. this is the notorious black stadium. under is, it was routinely used for executions and torture. in 2019, after a year as leader of the party, hevrin hosted a celebration of liberation. fahad was there also.

just a few weeks later, they were both killed. but the victory over islamic state by a majority kurdish force also sowed seeds of resentment among the population in the traditionally arab lands, where islamic state had ruled. hevrin‘s party sought to defuse this resentment, by reaching out to the arab population in towns like hasekah. it wasn'tjust hevrin‘s party.

that is what washington was trying to do too and they were keen to find allies. i've come to meet hevrin‘s colleagues in hasekah, arabs, kurds and christians together. do you think one of the consequences then of the american withdrawal was hevrin‘s death?

you are a colleague of hevrin‘s, how will you remember her? how are you feeling?

she chants 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 in 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 towards 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 so 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 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.