welcome to bbc news, broadcasting to viewers in north america and around the globe. my name is reged ahmad. our top stories: just hours before voting is due to begin, nigeria's presidential election is postoned. we'll be live with the very latest. donald trump invokes national emergency powers to fund the border wall with mexico. his opponents are furious. we are to confront the national security crisis on our southern border and we are going to do it one way or the other, we are going to have to do it. the family of the pregnant teenager who joined the islamic state group pleads with the british authorities to help bring her home. and junk in space — engineers test a new satellite harpoon—system for collecting floating trash. we start with a developing story from nigeria.

the electoral commission has postponed the presidential election by a week, just a few hours before voting was due to begin. the commission chairman yakub mahmood said that it was not logistically feasible to proceed as scheduled. this is what he had to say in the last hour. the commission came to the conclusion that proceeding with the election as a scheduled is no longer feasible. consequently, the commission has decided to reschedule the presidential and national assembly elections to saturday, 23rd of february, 2019. let's get the latest now from our correspondent in yola, in the north east of nigeria, mayenijones. we have heard from the two main

parties who are condemning this move? the ruling progressive congress was the first party to release a statement and they said they condemned the delay. they called for the supporters to be patient, urging them to turn up on the 23rd when the vote has been rescheduled but they also blamed the opposition, the people's democratic party, for the delay. they hope the commission was not colluding with them. the leader of the opposition shortly later released a statement expressing disappointment and the delay and the his supporters at two remain calm but blaming the ruling party that they eat feared rule —— losing the election. any further

insight about why the decision was made by the commission? no, yakub mahmood said he would provide more details later on saturday. there had been a few fires in a few polling stations. as of yesterday, friday, we we re stations. as of yesterday, friday, we were still getting reports that many polling stations still had not received ballot papers and essential voting materials. there have been a few challenges that this election. 4 million registered voters, officers in part of the country that are very remote and these may have been some of the factors contributing to the decision. we have heard for a call for calm but what kind of reaction do we anticipate from voters waking up do we anticipate from voters waking up hearing the news, expecting to go

to the polls? i suspect there will bea to the polls? i suspect there will be a lot of disappointment. many people travelled a long distance to vote. many volunteers have been deployed all around the country to man polling stations and have been sleeping in uncomfortable conditions and they will be disappointed, journalist also all over the country he will not be able to cover the elections. people will be asking a lot of questions. the commission had for yea rs lot of questions. the commission had for years to prepare for these elections. why it were they not prepared? in the past, elections had led to violent soap people will be looking closely to see how people react but it is encouraging that both main parties have urged for calm. you have spoken of events in

the past. it is such a last minute decision, how unusual is that in the contexts of elections in nigeria?m 2015, the polls were postponed due to insecurity in the north—east. then the voters were given six days notice. 2011, the national assembly elections were postponed on the day so elections were postponed on the day so it is not particularly unusual. 2011 elections were marred by violence after the results were announced, about a hundred people we re announced, about a hundred people were killed in clashes in the north of the country. —— lots of violence and tension. many people potentially have the potential to destabilise the wider region. thank you very much for the latest on those

elections being postponed in nigeria. after weeks of speculation, president trump has defied his critics, and many in his own party, by declaring a national emergency. it means he can now bypass congress, to get the billions of dollars he says he needs to build a border wall with mexico. those funds will come from other government departments. but democrats have launched an investigation saying the move is unconstitutional and they'll fight him all the way to the supreme court. our north america editor, jon sopel has more from washington. ladies and gentlemen, the president of the united states. donald trump had an unpalatable choice. having not got a deal with congress, he was either going to have to admit failure on funding his wall with mexico, his signature campaign pledge, or he was going to have to go nuclear. he chose nuclear. this was now a national emergency on the southern border. we're going to be signing, today, and registering, national emergency. and — it's a great thing to do,

because we have an invasion of drugs, invasion of gangs, invasion people, and it's unacceptable. watched by relatives who have had family members killed by illegal immigrants, the president rode roughshod over the powers of lawmakers to set budgets and to set up a confrontation with congress that he fully recognises is likely to end up in the courts. we will have a national emergency and we will then be sued and they will sue us in the ninth circuit, even though it shouldn't be there. and we will possibly get a bad ruling and then we will get another bad ruling, and then we ‘ll end up in the supreme court. and all the time the courts are deliberating it means there will be no substantial building work taking place. less building a wall than hitting one. but here's the problem. there's a lot of of fencing and structures, but there are places where it just ends, so people like his mother and child from guatemala can just walk round it.

"my little girl is hungry," she says, "and i don't have any money." in recent years, the number of illegal immigrants trying to enter the us has been in decline. and most of the drugs that enter the country from mexico come from legal crossing points — like this one. but a lot of border patrol officers who backed the president's call for a wall make this point about the problem subsiding. i would say it's nothing like it was. i would say that it's changed. but that is the equivalent of saying your house is only getting robbed one day out of the week now, instead of all seven, then you're done. we're not done. back in washington, the democrats are considering their next move. it's hard to believe they won't challenge this. president trump couldn't convince mexico, he couldn't convince the american people, he couldn't their elected representatives to pay for his ineffective and expensive wall. make no mistake, congress will defend our constitutional authorities

in every way that we can. donald trump's signature is now on this declaration. there are many on both sides of the divide who question how much of a national emergency this really is. and it won't be lost on them that on day one of the emergency the president flew off to his golf course in florida, not the border with mexico. jon sopel, bbc news, in washington. let's get some of the day's other news: five people have been killed in a shooting at a warehouse near chicago. police said the gunman was shot dead by their officers. it happened in an industrial area on the outskirts of aurora. at least 5 police officers are amongst the injured. the turkish president, recep tayyip erdogan, says his country is determined to take the investigation into the killing of the saudi journalist jamal khashoggi to an international court. mr erdogan said turkey had not so far disclosed all the documents and information it had concerning the killing, but would deliver them to investigators. two men have been arrested by airport authorities in hong kong,

for allegedly smuggling a record number of suspected rhino horns worth $1 million. the men were on their way to vietnam from south africa. it comes just two weeks after a seizure of eight tonnes of pangolin scales and more than 1,000 elephant tusks. relatives of a teenager from london who went to join so—called islamic state have asked the british government to help them bring her home. the family of shamima begum, who was 15—years—old when she left the uk, said they understood she would be investigated and they welcomed that. there's also a new warning from the head of britain's intelligence agency, m16, that the jihadists still pose a threat. daniel sandford has more. inside the al—hol camp in northern syria, the women and children fleeing the fighting in one of the last strongholds of the islamic state group. this is where the former bethnal green schoolgirl shamima begum is.

her family had lost all hope of seeing her again. and tonight, in a statement, they asked the british government to help them to return her, along with her unborn baby. "as a british citizen," they said, "shamima has every expectation to be returned to the uk and be dealt with under the british justice system." they said they would welcome the police investigating her, something that is inevitable if she returns. we have to be clear that people who leave this country to support that regime are people who, if they do return, have to answer for their actions. some 850 people left the uk to join is and around half have already come back. today alex younger, the head of the secret intelligence service, mi6, warned that at least some returnees will pose a risk. the home secretary said this morning

that he would prevent those involved in terrorist organisations returning to britain. but what does that mean for shamima begum, who left the uk as a schoolgirl? could she have her citizenship taken away? if she doesn't have another nationality, as i believe to be the case, then it is morally unacceptable to refuse her entry — as well as legally unacceptable. because otherwise she would be stateless. and no person in the world can be stateless under the law. her family said they were shocked to hear her say she didn't regret going to is. they explain it by suggesting that she was groomed at the age of 15 and might have been wary of what she was saying in a camp surrounded by is sympathisers. and rashad ali, who is an expert in de—radicalisation, says is supporters can be turned round.

we know in the uk we have worked over the last ten years with fairly hard—line violent extremists who have renounced their ideology, have remorse for their actions, and have taken part, actually, in helping others move away from extremist tendencies and violent ideologies. the kurdish red crescent says there are around 1000 new arrivals at al—hol just this morning. decisions will have to be made soon about what to do with the british is supporters among them. daniel sandford, bbc news. later today the funeral for the footballer, emilio sala, later today the funeral for the footballer, emiliano sala, will be held in his home town in argentina. the 28—year—old was killed in a plane crash, while travelling to his new club, cardiff city. kim gittleson has more. a hometown hero returned to soon.

for the residents of this small argentinian town, this was not the way they wanted to welcome back one of their most successful sons. translation: without a doubt, we would never have imagined everything we are seeing would never have imagined everything we are seeing 110w. would never have imagined everything we are seeing now. there are 3000 of us we are seeing now. there are 3000 of us and we remain shocked and ove 1120 m e us and we remain shocked and ove rco m e by us and we remain shocked and overcome by the situation is still trying to give emiliano sala the farewell that he deserves. emiliano sala or are playing football here in progreso until the age of 13, when he left the pursuit opportunities. he was bought by cardiff city for a clu b he was bought by cardiff city for a club record of $90 million on the 19th of january. two days later, the plan carrying him and the pilot david ibbotson to his new home the

plane crash. david ibbotson‘s remains remain missing. now the residents of progreso preparing to say goodbye or promising that emiliano sala will remain in their hearts. stay with us on bbc world news, still to come: what's happend to 30,000 thousand litres of iceberg water thatjust melted away. nine years and 15,000 deaths after going into afghanistan, the last soviet troops were finally coming home. the withdrawal completed in good order, but the army defeated in the task it had been sent to perform. malcolm has been murdered. it has a terrible effect on the morale of the people, i'm terrified of the repercussions in the streets. one wonders who is next. as the airlift got under way,

there was no letup in the eruption itself. lava streams from a vent low in the crater flowed down to the sea on the east of the island, away from the town for the time being, but it could start flowing again at any time. the russians heralded their new generation space station with a spectacular night launch. they've called it mir, the russian for peace. this is bbc news. the latest headlines: hours before voting was due to begin — nigeria's electoral commission blames logistical reasons, for postponing the presidential election by a week. donald trump invokes national emergency powers to fund the border wall with mexico. the democrats accuse him of "an abuse of power". in canada, royal canadian mounted police are investigating

the mysterious disappearance of a large container of iceberg water which was going to be used in the production of vodka. the water is expensive, because it is costly to extract. it went missing earlier in the week in the province of newfoundland. steve ciccolini is chief operating officer at canadian iceberg vodka corporation. he's in toronto. and hejoins me now. steve, it is no mean feat to take this amount of water. what actually happened? frankly, your guess is as good as oui’s. frankly, your guess is as good as ours. we came into ourfacility earlier this week and we found 30,000 litres worth of our precious commodity missing. and have you ever had this happen before? no, we haven't. first—time. had this happen before? no, we haven't. first-time. what is the speculation in terms of how the fee

for thieves might have done this? well, they would have needed some heavy equipment, some knowledge of the area, but, frankly, the rcmp investigation is ongoing and we are looking for whatever leads we can get. and do you normally have security there, presumably, perhaps not, given this is an unusual thing to happen? we do. the area is well gated and fenced off. the whole area is very secure. whoever did this was quite the thief. so if someone has this kind of water extracted from icebergs, what can they do with it? is there a black market they can sell it on? laughter. not to our knowledge. the vast majority of this iceberg water goes into our very own iceberg vodka. some of it is sold to some local

parisse for their use in beer, but, again, the vast majority would be for the use in vodka —— prairies. it is about 150,000 bottles of vodka, just to put it in perspective. quite a bit of water that was taken. so what is the speculation around what someone what is the speculation around what someone could do with this amount of water than? again, to my knowledge, there is no black market for this. you know, if it turns up somewhere we will probably know about it. it is quite a big quantities. and you just explain a little bit more about what iceberg water is actually useful, other than vodka ? what iceberg water is actually useful, other than vodka? again, it can be used in some other beverages. it can be used in bottled water on its own. it is the purest source of water on the planet. it comes from 20,000 —year—old icebergs that flow

down iceberg alley in eastern canada. in bottled waterform it is pretty pure. in vodka it is even greater. it can also be used, a little bit more rare use, is in cosmetics. but, again, this water was destined for our own iceberg vodka. steve, good luck finding that a large amount of iceberg water. and thank you very much for talking to us thank you very much for talking to us today. steve ciccolini from a canadian iceberg vodka corporation in toronto. schoolchildren across the uk, have been taking part in a day of protests, calling for action on climate change. organisers say pupils walked out of schools in more than 60 towns and cities to highlight what they see as a lack of action by the government. frankie mccamley reports. we are angry that the government's not doing anything, but we also see it as important to fight for ourfutures. to all the politicians, listen to what we have to say. you failed at saving your own future, so now can you try and save ours? there's no time to rest.

we have to do something to save the planet. chanting: this is what democracy looks like! different voices, one clear message. today was a day led by the children, for the children and their future. thousands campaigned in dozens of protests across the country. they say you don't have a voice! a call for action in sheffield... what do we want? climate action! chanting in ullapool. .. marching in brighton... a real sense of urgency in cardiff and, in manchester, there was music. # born to love in everyone... before nine—year—old lilia had her say. i'm worried about climate change because of the animals. would you like it if your home was disappearing in front of your eyes? this is clearly the first time many of these pupils have ever walked out of school and, just by looking at the age of some of these, the first time they've ever been on a protest, but their message is clear.

they want to protect the future of the planet and safeguard their future. the action is part of a much wider global movement, inspired by 16—year—old greta thunberg from sweden. she's been striking from school every friday, calling on her government to lower its carbon footprint. you are not mature enough to tell it like it is. even that burden you leave to us children. her persistence later sparked protests across the world — from australia to belgium and ireland earlier this week. the government has said today's protests are a waste of lesson time and increasing teachers' workload, but the threat of school disciplinary action pales in significance to the danger these youngsters think the planet is under from climate change. frankie mccamley, bbc news, manchester. the prize—winning author, andrea levy, has died

at the age of 62. her novel small island won — among other accolades — the orange prize for fiction, the whitbread book of the year award and the commonwealth writers' prize and has been adapted for bbc television and the theatre. engineers say they've successfully found a new way to tackle the build—up of space debris. a team from the uk have used a harpoon—capture system on board a satellite to collect orbitaljunk. our science correspondent, rebecca morelle reports. this is the moment a harpoon was fired in space. striking a target almost dead centre, it was filmed 250 miles above the earth. it's the latest experiment from the remove debris spacecraft. led by surrey university, it's a mission that is testing out the technologies that could clean up space junk. it was absolutely a success and the goal of the experiment was to hit the target and that's what we did. it's important because there's

so much debris up in space, from spacecraft that are no longer operational to bits of rocket body, and we need to start clearing some of this debris out of the way to make way for new spacecraft. space is becoming increasingly cluttered. it is estimated there are now nearly 8,000 tons of debris, with 800,000 pieces the size of a marble or bigger, and each piece has the potential to do some serious damage. in 2016, this crack in the window of the international space station was thought to have been caused when a tiny fleck of paint hit it. bigger objects could do even more harm. scientists are particularly worried about a european satellite the size of a double—decker bus that stopped working in 2012. it's now threatening other satellites in its path and needs to be removed from its orbit. last year, the remove debris spacecraft also tested a net, proving it could catch a passing satellite. it's the first mission to try and address this problem. and it's also used its onboard cameras to track a tumbling target. essential for hunting down any rogue space litter. its final test will be in the coming weeks. it's set to burn up as it returns to earth, preventing it from becoming a piece of space junk itself. the hope is now that future missions can be scaled up so the celestial deep clean can begin. you need a good aim for that

harpoon. it's been another day of sporting diplomacy for the russian president. yesterday we brought you pictures of vladimir putin on the judo floor, but today he's moved from the mats to the ice. mr putin played ice hockey in sochi during a meeting with the president of belarus. and while there was no goal—keeper for this shot, you can't question the russian leader's accuracy. you can reach me on twitter — i'm @regedahmadbbc. hello. judging by the weather over the past few days it looks like spring is in a hurry to start. and, well, apart from the cloud that moved into northern ireland and western scotland, friday brought plenty of sunshine again and the warm spot was in wales. this view from wrexham. it was in rhyll, actually, in north wales, where the temperature reached 17.5 celsius. that's even higher than thursday's top temperature. and over the weekend we are we are still in this lower, mild air heading in from the south. though there are a few weather systems coming our way. so we can't rely on clear blue skies. here's the first week one that's moving across northern scotland, with some outbreaks of rain. another one will come in during sunday.

so, for the weekend then, it is still mild. temperatures are above average for the time of year. it will be breezy, especially on sunday. it will be dry for many. though these weather systems will bring a bit of rain, especially to western parts of the uk. and, already, as saturday begins, things are different. not as cold as recent mornings. more cloud around as well. still the leftovers of some overnight rain affecting parts of western and northern scotland before that eases. we're going to keep a lot of the cloud feeding into southern england. that's going to edge further north. elsewhere it's sunny spells, rather than clear blue skies on another breezy day. so a closer look at things at four o'clock in the afternoon. should start to see some sunshine coming back into the channel islands. could be some coast and hill fog from the thicker clouds in the south, maybe the odd bit of drizzle. cloud increasing for wales, the midlands, into east anglia. but still sunny spells in northern england and a few breaks in the cloud for northern ireland and scotland. best of the sunshine here will be in the east. but cloud thickening in the western isles, again, the northern isles still seeing a bit of patchy rain. could see the odd shower pushing in towards cumbria, lancashire, too.

but most places are looking dry. overnight we are going to get rid of quite a bit of the cloud, so clearing skies for many of us. though temperatures aren't going down too far into sunday morning. so no issues with frost. then the next weather system i pointed out is starting to bring its wet weather into the west. it's going to weaken as it slides further east during the day. so we're not going to see too much in the way of wet weather out of this. it is a windier day with this weather system, though, approaching and moving through during sunday. but there is more sunshine around ahead of this system. and it's a fairly narrow one as well. just cloud, a bit of patchy rain working through. clearing through northern ireland. any heavier bursts of the rain, really, into northern parts of scotland for a time. quite windy in western scotland. some gusts up to 50 mph or so. and notice temperatures are just on the up a little bit more compared to saturday. especially, of course, where you get to see some sunshine. eastern part of the uk look mainly dry. not as mild into the start of next week. and still a fair amount of cloud around. this is bbc news, the headlines: nigeria's electoral commission has postponed the presidential poll by a week — hours before voting was due to begin. the commission chairman, yakub mahmood, says the delay was necessary to ensure

a free and fair vote. the us president donald trump has declared a national emergency in an attempt to bypass congress and secure funding for his mexican border wall. democrat leaders have described it as "a gross abuse of power" and announced an immediate investigation into the declaration, which they say violates the constitution. relatives of shamima begum, the pregnant teenagerfrom london who went to syria to join the islamic state group, have asked the government to help them bring her home. britain's home secretary, sajid javid, has made it clear he'll try to prevent the return of people who've supported terrorist organisations. next week mps looking into disinformation and fake news,