on a train in surrey. police are describing this incident as a "shocking and violent attack" as they search for the suspect. the foreign secretaryjeremy hunt warns russia not to use uk citizens as "diplomatic pawns" after a british national is held on suspicion of spying. new guidance says there is little evidence to suggest screentime is harmful to children — and parents are the bestjudge of how long they should spend on smartphones and other devices. let's go live to hear from superintendent paul langley with the latest details. you will be aware that british transport police and surrey police were called to horsley station at 1:15pm following a serious stabbing on—board a south—western railway train. it happened on the 12:58pm service from guildford to london waterloo.

tragically as a result a man believed to be 51 years old was pronounced dead on board the train. early indications suggest received multiple stab wounds. what we know at the moment is the victim boarded the train at around 1pm at london road station in guildford along with his 14—year—old son. dramatically, his 14—year—old son. dramatically, his son would have been nearby when his son would have been nearby when his father was fatally wounded. this would have been a horrific and hugely traumatic event to witness and we are providing him with as much support as possible. we know the suspect boarded the service at london road station but at this time we do not believe they are known to each other. we also may be suspect left the train service at clandon station. there have been a number of sightings in the area from members of the public and our inquiries are focusing on these areas. we have a number of officers in the area

working hard to trace the man responsible for this violent and deadly attack. we are working closely with surrey police and the national police air service. the suspect is a black man in his 20s to 30s, approximately six feet tall and slim build with a beard, believed to be dressed all in black with white trainers. at this moment i would ask the public to please contact police urgently the public to please contact police urge ntly by the public to please contact police urgently by calling 999 if they see anyone matching the description. please do not approach him. our major investigation continues and we are appealing for witnesses to get in touch. if you were on board the train we need to hear from you as $0011 train we need to hear from you as 50011 as train we need to hear from you as soon as possible regardless if you saw what happened or not. please text us on 61016. i would like to reassure the public that violent events like this on the rail network are extremely rare. over the course of the evening and into tomorrow we will have extra officers out on duty

in the local area to help reassure any concerned passengers and rail staff. thank you. that was superintendent paul langley. we've learned some new details concerning this attack. the police were called at 1:15pm with news there had been an attack on board the train. the train was travelling to waterloo station. a51—year—old man was pronounced dead on the train. he had boarded the london road station at around 1pm with his 14—year—old son. as we heard from superintendent paul langley, expressing the distress the young teenager would have been in after witnessing the attack. we also may be suspect also boarded the

train at london road station at the same time. but as superintendent langley said, they don't believe they were known to each other. a description has been given of the suspect. he's been described as black, in his 20s to 30s, he had a beard, he was slim and dressed in dark clothing with white trainers. it's believed he got off in the clandon area and ran towards the area. police giving that number to get in touch with them if they have further information. we know the man who died was 51 years old, he was pronounced dead on the train. he had boarded the train with his 14—year—old son at london road station. the suspect also boarded at

london road station at the same time. just to remind you of the details, the suspect has been described as black, in his 20s or 30s, he had a beard and was slim, dressed in black with white trainers. we knew from pretty early on he got off in the clandon area and then ran towards dedswell drive. more on this as and when we get it. tony foulds was just a young boy when he saw a us bomber crash in a park in the british city of sheffield in 19114. he has been tending to the memorial for the ten crew who died, ever since. now he hopes that this year's 75th anniversary of the tragedy will be marked by a fly—past in honour of those who lost their lives. the bbc‘s dan walker has been to meet him. we saw this plane circle,

it was just over the rooftops. as it came over, we don't know whether it were a pilot or a bomb. on that front side, it went like this. we were back, eight years old, they were wanting us to get up the grass. you look this way, there's thousands of houses there and the other side is behind us, where they crash—landed, thousands more houses going down to the city centre. this is the only bit of green they could have landed. this is it. he decided to fly that way. as he did, he decided to go over the trees. the next thing we knew, boom. and i thought, you know, good gracious. i could have not been here if those lad hadn't gave their lives. this is what you been looking after for all these years, tony? yeah.

how do you feel standing here now? the first thing of course is always kiss them first. and i start talking. it's not very nice today. you won't like it when it's like this. then we go on about my shopping. you know, i know people who pass think i'm daft. i don't think you're daft, by the way, tony. i can see your hands shaking, you have tremors. essential tremors, for many, many years. as long as i'm alive. i'll never stop. that, i can swear, i will never stop. does the guilt get any easier to deal with? do you still feel guilty now? yeah, never will get any easier. your dedication means a lot to an awful lot of people. the fact that you care makes

an awful lot of people care as well. thank you, yeah. how often do you think about that sacrifice? every day, single day. for you, it's about these ten men and their families. i know what you do want, is to make sure that on that 75th anniversary, on the 22nd of february this year, you would love some sort of fly past to mark the occasion. why is that so important? because this is a tribute that they deserve. they deserve it. donald trump has defended his decision to withdraw american troops from the conflict in syria. america's kurdish allies on the ground in north—east syria, feel they've been left exposed. turkey, which regards

the kurds as terrorists, appears poised to move against them. but they're not the only group feeling threatened. with more, here's david campanale. armed militia, opposed to the syrian government and backed by turkey. they're preparing a holy war against the syriac christians and kurds of northern syria. if america draws its forces from the region, they intend to move in. syria's border with turkey remains a key flash point in the ongoing civil war, held by different factions. territory lying to the east of the river euphrates is held by an american—backed alliance of syrian kurds, syriac christians and local arab tribes. known as the sdf, the syrian democratic forces also heard territory to the west. but fearful of turkish investigation, kurdish fighters are reported to have begun withdrawing. they prefer the presence of syrian national army troops of president bashar al—assad.

the historic christian community says turkey is poised to launch an invasion, and they fear massacre. we don't want a repeat of the 1915 massacres in 2019 under the pretext of safe zone. it's us who need safe zone from threat from turkey, not the other way around. turkey continues to send tanks, howitzers, machine guns and buses carrying commandos to reinforce its border posts. but whether or when turkey invades hangs on america. some 2000 us military personnel are believed to be in syria, although the real numbers could be higher. last month, president trump announced, "they're all coming back and they're coming back now." but in a cabinet meeting at the white house, he said he'd never actually set a timetable. we want to protect the kurds, but i don't want to be in syria forever.

it's sand and it's death. i never said we're getting out tomorrow, i said, we're pulling our soldiers out and they will be pulled back and we're getting out of syria. one quarter of syria is held by american—backed forces. the stability of the region and the future of its religious minorities now hangs on how fast they leave. now it's time for a look at the weather with ben rich. good evening. mixed fortunes in the sunshine stakes today. for some a beautifully bright day. this is how it looked on the coast in dorset. further north in cumbria, cloudy skies overhead. for the majority, cloud will win out this weekend. staying largely dry but often cloudy. that cloud circulating around this area of high pressure. keeping things predominantly dry but these bigger areas of cloud

will continue to feed around the high. where we had clear skies in the south—west, generally we'll see increasing cloud through the night. it might stay clear long enough to give a touch of frost in places. quite mild across the far north—west with winds from the atlantic. we are pushing these lumps of cloud around the chart, the best chance of seeing some sunshine in parts of the west country first thing. for eastern and north—eastern scotland and the north—east of england. those temperatures will struggle, at best getting up to 4—8 degrees. through saturday evening a bit of a change. we see this band of light and patchy rain moving across northern ireland. this is tied in with a weather front which will sink southwards as we get on into sunday.

there won't be much rain along this frontal system, the odd spot of drizzle on sunday. the front bending back into northern ireland. likely to cloud over from the south. the best of the sunshine across scotland. something a bit milder developing by this stage, particularly across the far south—west. the weather steps up a gear into the start of next week. this deep area of low pressure passes just at the north and that is going to give some outbreaks of rain but also strong winds potentially, particularly across northern scotland. we could see 65—70mph. further south, not as windy, staying largely dry and often cloudy, a bit less chilly. this is bbc news. the headlines at 8pm. a murder investigation

and manhunt is under way, after a man was fatally stabbed in front of his teenage son onboard a train in surrey. traumatically, the victim's son would have been nearby when his father was fatally wounded. this would have been an horrific and hugely traumatic event witnessed, and we are providing him with as much support as possible. the foreign secretary, jeremy hunt, warns russia not to use uk citizens as "diplomatic pawns", after a british national is held on suspicion of spying. police say there's evidence members of organised criminal gangs are seeking prisonjobs in order to smuggle in drugs. new guidance says there is little evidence to suggest screentime is harmful to children, and parents are the bestjudge of how long they should spend on smartphones and other devices.