even higher levels of air pollution hitting southern britain with an oppressive mix of local emissions and dust from the sahara. hello, everyone. the war in syria is into its fourth year. the plight just gets worse. any family that can tries to flee the country. the crisis has been underlining by this, a tragic and new symbolic number. 1 millionth refugee. the u.n. calls it a devastating milestone. one million new of just 6 million people. altogether, the u.n. says a total of 2.5 million syrians are now registered as refugees abroad. and the actual number who have fled is unknown. it's widely thought to be much higher because many are too frightened to register. many have fled in every direction. northern iraq, northern turkey, jordan and above all, lebanon. lebanon has taken by far the most. it received only 14% of the funding it's asked for. some refugees have told us about their struggles. >> some names were leaked to the authorities. so they were afraid of possible retaliation of their families back home. some of them still for the most are afraid to be recognized as refugees. >> i want to be safe. because lebanon in this situation for syrians lebanon is a part of the regime. >> the very mixed emotions there from some of those among the million who are now in lebanon from syria. jim muir joins me from beirut. i was struck by the first man there saying life was better in syria than it is in lebanon. what does that tell us about the conditions they're in, jim? >> well, certainly conditions for many of those refugees are extremely grim. not all of them. some refugees have money. they can afford to representative apartments and so on. quite a large proportion, 30% are living in squalor, shanty settlements, some of them exposed and outlying. they go back to the good old days before they became refugees. a lot of them, as i say, living in very makeshift conditions. it gets very cold here in the winter. people think it is hot. it is not hot all the time. but it gets hot in the summer. you're equally uncomfortable either way. so basically they are feeling very hot. one lady set fire to herself last year in protest. the aid agencies are underfunded. they are getting less than 15% of what they are asking for to cope with this massive strain imposed on them. and of course lebanon and the lebanese. we didn't hear much of the first part of your answer. the difficulties being faced by lebanon and the emotional challenges just getting money for the syrians who are there in the country. what about the challenge now for the lebanese government creating some stability out of this when one-sixth of their population are syrians. >> yes. the figures are slightly debatable. one every four lebanese there is one syrian. it is a very huge strain for the lebanese government, which has only just taken office itself after a long period of in stability trying to form this new government. the government in in case is in a weak position. it doesn't allow for historical reasons the establishment of big, formal camps which would make administering them a lot easier. that means they are dotted around all over the place. literally hundreds of informal settlements making it difficult for the government and the agency agencies to get help to them. they are appealing to the outside world, to the west and regional countries to come up with more funds to help cope with the massive strain it is putting on. there are very limited resources. >> you'll find plenty more detail on the humanitarian catastrophe. go to bbc.com/syria. apologies for the very poor quality sound coming out of beirut. within the past few minutes, ukraine's interim security chief blames yanukovych of organizing mass murder. it comes as the interim government publishes the first finding of its inquiry into the deaths of 100 protesters of kiev in february. several members of the riot police squad have been arrested. let's go to the bbc's david stern who joins me from kiev. david, the details coming out suggest really a level of planning and opportunism using pro vac ters to shoot. >> that's right. it was a wide-ranging press conference. obviously this reaches all the way to the top of the government. mr. yanukovych but also some of his top ministers. we heard against russia. the russia secret service is providing weapons and also helping with the planning. this can be very inflammatory. ministers have said they have the evidence to back this up. they have extensive evidence, including phone calls and paper trail, other things including photographs. obviously there's quite a bit there. we have over 100 people who have died. but they say, for instance, one gun killed seven people. >> we are out of luck today. david, we have lost you. the signal has gone down. there you can see the events from february 20th. david, are you back with me? can you hear me? >> reporter: yes, i can hear you. >> pick up from 15 seconds ago. we lost you at that point. >> reporter: well, as i was saying, this could be very inflammatory towards rush shafplt this is a very highly anticipated report. this is an emotional and politically charged. we have 100 people who have died. the ministers who are speaking now say they have the evidence. they have the paper trail, the photographs, the phone calls. they have the witnesses if necessary. obviously this is something that they need to prove. people here who have been waiting for this for a long time now. the events took place in mid-february. in independence square. this is a shrine to the dead people. it's become a giant sea of flowers and candles there. of course they also need to be speaking to the people in the east of the country because they are looking at this government a bit skeptically and they are -- >> we are really not in luck. those pictures from the visit of u.s. secretary of state john kerry shortly after february 20th. and any visitors, whether eu foreign ministers or others meeting in kiev arriving there to pay tribute to those who died. we're still expecting more details to emerge from kiev from this this interim investigation by the current interim government of ukraine. russia is waiting for an answer on nato from its military activities from eastern europe. sergei lavrov follow a warning by the top commander in europe that russian troops are massed on the ukraine border and can be ready to mount an attack within 12 hours. mr. lavrov said russia has the right to move troops into its territory and they will return to base when current military exercises are complete. let's go to chile now where there has been a strong second earthquake off the north of the country. it had a magnitude of 7.8 and followed an 8.2 quake on tuesday. a excuse me alert issued for chile and peru, has now been lifted. there are no reports of casualties or serious damage. here's nick childs with details. >> reporter: an understandable reaction as for a second night the ground shook severely in northern chile. this the result of a particularly powerful aftershock. they spilled on the streets again. sirens blasted out a new tsunami alert. some were more prepared than others. among those forced to flea, the chilean president who had been visiting to assess the damage from tuesday's earthquake. >> translator: i was evacuated, like every other citizen. we have come to see if there's any way we can help. >> reporter: the tsunami warning was quickly lifted this time. there have been no reports of any significant new damage or injuries. for the coastal residents it was another sleepless night full of anxiety. some of the damage from the original acquit, 2,600 homes damaged, six people reported dead. although that number could grow. chile is one of the world's most earthquake-prone countries but also one of the most prepared. >> translator: i saw people walking calmly. it's evident they're prepared because they have small travel bags which probably contain a coat and something to eat. there are lots of people walking about. many calmly waiting. i think it's good people have had a significant response to the authority's call for preventive evacuation. >> reporter: a huge task still to assess the full impact of these tremors. malaysia's prime minister has committed to continuing the search for flight mh-370. the airliner disappeared almost four weeks ago. no wreckage has yet been find. time is running out to find the black box flight recorder. malaysian prime minister has been in perth which has been coordinating the current searchment australia's prime minister was there too. >> we are here today but our thoughts are thousands of kilometers away in cities and countries around the world where families of those on board wait, and wait desperately for news. and in the vastness of the indian ocean where mh-370 awaits. i know that until we find the plane, many families cannot start to grieve. i cannot imagine what they must be going through. but i can promise them that we will not give him. >> john donnison is in perth and has more on the search efforts. >> reporter: there are now 10 ships and a british submarine scouring the southern indian ocean. the past two weeks there have been 100 search flights and still nothing. the cost is massive. one aviation expert today told us that the search for the air france jet that crashed over the atlantic ocean in 2009 cost 50 u.s. million dollars. he estimates this could be 10 times more expensive. the australian prime minister tony abbott has been meeting with his malaysian counterpart in perth. he called it the most difficult search operation in history. and he said while there was no guarantee of success, he said no effort would be spared. so for the moment no talk of giving up despite the massive cost. but it has now been almost one month since the malaysian airliner disappeared and still no prospect of finding it. stay with us here on "bbc world news". still to come, high alert off the australian coast a woman is killed by a shark on her daily swim at a beach in new south wales. 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[ speaking in russian ] look, look, look... you probably want to get away as much as we do. with priceline express deals, you can get a fabulous hotel without bidding. think of the rubles you'll save. with one touch, fun in the sun. i like fun. well, that went exactly i as planned.. really? you're with "bbc world news". i'm nik gowing. the number of refugees who fled syria and registered in libya now past 1 million. the u.n. calls today a devastating milestone. an investigation by the ukrainian government has confirmed police officers did shoot dead anti-government protesters in february. now, "bbc world news", it's the business. here's aaron. >> thanks very much, nik. china focused at the moment. hello, china. it has unveiled a new round of stimulus measures hoping to spur growth in the second largest economy. it's dubbed as the mini stimulus package. the government will boost spending on infrastructure and offer tax relief to support the economy. the measures were unveiled just as numbers in recent weeks showed they have slowing activities, including construction, manufacturing and retail. the state council said they will serve $24 billion worth of bonds selling chinese debt. they will sell it this year and help build railways in the western regions. okay. how about this one. nobody. nobody likes pesky credit card fees. now, eu consumers, we could all be saved hundreds of millions of euros or dollars. that's because later today in the eu, the eu parliament will vote whether or not weather to introduce a cap on the fees that banks charge retailers for processing card payments. it follows months of heated debate. they will decide whether to set a limit on the charges that they have to pay to the bank when you by buy something using your debit card. and this one. the online takeaway company. just eat just went public. it was a successful ipo, initial public offering, for the business, with shares rising as much as 10% for one stage. shares were priced at 260 pence each. forget that. what's the value of the company? >> 12.5 million pounds, $2.5 billion. it's the what's app on takeaway food. we'll have a lot more on "gmt" in just over an hour's time. do you want anything you want to say? tweet me. tweet me back. >> let's call it what's tasty. let's register it and sell the name. a soldier at the largest army base shot dead three soldiers and wounding others before killing himself. he was being treated for anxiety and depression. the commanding officer of the texas based said the motive for the attack was not known. but there was no indication of terrorism. in 2009, a u.s. army psychiatrist killed 13 people and wounded more than 30 others at ft. hood >> a woman swimmer is thought to be killed in a shark attack. she was on her regular morning swim 300 kilometers south of sydney became separated from the group and then disappeared. sylvia costello has more details. >> reporter: a daily morning swim for 14 years. but this time christine armstrong didn't return to the beach south of sydney. she got separated from the group she was swimming with, which included her husband. he saw a large shark, three to four meters in length. he didn't see an attack. >> an independent witness was up on the rocks and had seen a large shark in the area. and it appeared that the shark was mauling something. he wasn't able to tell what the shark is was mauling. an intensive land and sea search has been yon going since then involving helicopters, water police, surf lifesavers and local people as well in an attempt to locate her. >>reporter: the fruitless search was called off late thursday afternoon. the country has averaged fewer than two fatal attacks per year in recent decades. christine armstrong's family said in a statement that swimming brought her much joy. but this time it seems swimming took her life as well. a new space program promise to go speed up the time it takes to get satellite images back to earth. capernicus will launch two radars. >> reporter: we've been studying the earth from space for more than 40 years. the satellites have tended to be one offs or part of short-lived programs. capperna cappernacus is different. the state of the earth's land surface, oceans and its atmosphere. it will be a boom to climate studies. brussels needs to help manage the european union. they need to be enforced. sentinels will play a role in doing that. the european space agency procured the satellites over the eu. of course a variety of implications like support for shipwrecking and ship security and of course other surfaces, which is very important for security. and last but not least, of course for climate studies. it is very important to monitor the surface of the ice coverage if not on the south pole. >> though it is extending billions on capernicus, they believe it will shape new companies that find novel ways to use and sell the information. jonathan amos, bbc news. here in the uk, the arrival of spring usually means welcomed sun and april rain showers. let me take you to what we are seeing in london. here you can see the shot on the right, the city of london. it is more than likely you will need a face mask. this is grimy in the extreme. record hrofls of air pollution -- this camera is being moved around by someone with a joy stick in a studio. normally this view would be clear. you can see how dense the pollution has become. all because of dust blown north from the sahara desert in africa. low winds, emissions from mainland, and everyday pollution affect the weather in britain arnold europe. it is extremely unpleasant outside where i'm sitting here in central london three floors down underground. pollution readings reached a notch below the highest number of air pollution anywhere possible in the atmosphere. that's a reading of 10. people are lung and heart conditions have been told to stay indoors. anyone with sore eyes and coughs, limit how much time they spend outside in in. sorry about the picture. it's not very clear. but that's the story here on "bbc world news". ♪ booking.com booking.yeah! so ally bank has a that won't trap me in a rate. that's correct. cause i'm really nervous about getting trapped. why's that? 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[ back-up beeping, honking ] a truckload of discounts for your business -- now, that's progressive. the u.n. calls it a devastating milestone. the number of refugees who fled syria for lebanon today surpassed $1 million. today police marksman blamed for the bloodshed in kiev. they are accused of killing dozens of protesters. a u.s. soldier opens fire at an american military base. he shot dead three colleagues and injured 16 others. . and bbc investigation uncovers how some uganda ns escaped the stigma of being hiv positive. hello, everyone. the war in syria is into its fourth year. the terrible plight of civilian just gets worse. any family that can tries to flee the country. the scale has been underlined by this. the tragic new symbolic number. the 1 millionth refugee has been logged by the u.n. a couple of hours ago. the u.n. calls this a devastating milestone. 1 million new refugees in a country of 4 million people. 2.5 million syrians are registered as refugees abroad. the actual number who fled is unknown. it is widely thought to be much higher. many are too frightened to register. many fled in 234eu direction it of syria into neighboring countries. into northern iraq, southern turkey, northern jordan and into lebanon which has taken by far the most. it has received only 14% of the funding it has asked for. some have told us about their struggles. >> well, the united nations have said no country has done as much as lebanon proportional to its size. how is lebanon coping? >> it is under immense pressure from economically. as you said, when you have one in four of the population as refugees this puts a lot of pressure on electricity, water, education. of these million refugees who are formally registered in lebanon, 400,000 are children. there are places for a hundred thousand of them. so we have 300,000 children of these refugee versus no schools to go to. children are working. girls are getting married the a young age. so it is a very grim milestone. >> this is in a country where stability every day is challenged politically and economically. how is the country embracing this enormous potential for in stability? >> now, lebanon has suffered a spillover from the war. you have the shiite hezbollah supporting and the the sunnis supporting the armed opposition. it is creating tensions. we have seen a lot of instability in recent months. it is a challenge indeed to cope with with the economic, social and political stress that this is causing. >> given that the pressure is on, there is this infrastructure there is here, plus the new camps, and we have seen them working in the field to earn a small amount of money for their parents to keep going, how is the government dealing with?? >> they are pleading for help -- >> it's money they want? >> it is money they want. $2.5 billion last year. >> is this producing a political threat at the moment? >> it is if the tensions between the factions supporting opposite sides escalates. but there are a lot of efforts to contain this. as long as theeer yann war is going on, it is bound to spill over in some form or another. >> it's dreadful. 1 million. only those who are registered. the potential to keep going is tragically enormous. >> it has been growing oaks poe tphep exponentially. 1 million has just officially registered. you can a few hundred thousand more. 400,000. >> thanks for that update with that terrifying figure from lebanon. go to bbc.com/syria. there you can see the address. there's been a second strong earthquake off the coast of northern khaeul lay. it had a magnitude of 7.8. it followed an 8.2 tuesday evening. a excuse me alert has now been lifted. there are no reports of casualties or serious damage this time. our world affairs correspondent has the latest. an understandable reaction as for a second night. the ground shook severely in northern khaeul lay. this the result of a tuckly powerful aftershock. from hotels and homes they spilled on the streets again. sirens also blasted out a new tsunami alert. they were forced to flee. the chilean president assessing the damage from tuesday's earthquake. >> translator: i was evacuated like every other citizen. we have come to see if there's any way we can help. >> reporter: tsunami warning was quickly lifted. no worts of new damage or injuries. it was another sleepless night full of anxiety. some of the damage from the original quake. 2,600 homes damaged. six people reported dead. although that number could grow. it is one of the most prepared. >> translator: i saw people walking calmly. it's evident they're prepared because they have small travel bags which probably contain a coat and something to eat. there are lots of people walking about. many sitting near hospital calmly waiting. i think it's good people have had a significant response to the authority's call for preventive evacuation. >> reporter: for the emergency services, though, a huge task still to assess the full impact of major tremors. in the past hour, ukraine's new security chief accused the former president viktor yanukovych of organizing mass murder in mid-february with the help of russian security services. his comments come as the interim government publishes the first findings into the deaths of 100 protesters in kiev. several members of the riot police squad have been arrested. warrants have out too for viktor yanukovych and his service chief. well, i'm joined by andy from the service. you were monitoring this press briefing or the briefing about this new report in kiev. let's focus on the men we saw in black that day, i think the 20th of february, firing at the protesters. who were they? what are they saying about them? >> the riot police who were given orders to shoot at protesters. they say they have evidence when these people were taking these masks off. and they know their faces as well. the two main points given at this press conference is the orders were given to shoot and ousted president viktor yanukovych yesterday denied he had given orders. he denied any of his close allies had. >> importantly, records were kept of orders. >> yes. these were what we find out today from this press conference. they say they've got permission for people who hand down weapons. so it's only preliminary the results. they will provide more information as they get it. but in the meantime another very important point raised which is the role of russia. >> what has emerged on the role of russia? >> the federal security services -- security bureau representatives were talking to ukraine's riot police. and that the former security service chief of ukraine reported directly to russia's security services as well. so also the explosives and weapons were airlifted into ukraine. tons of it actually. what was the role in it. and they were also saying many people enemas of the eye rot police which they accused of shooting are hiding in crimea. the memories of what happened in video from that time weeks ago is incredibly vivid not least because of what happened politically. but this question about russia again. what russia involved in what is involved in that part of the world, provocation, actively engaging? >> they say they didn't have a say in it. and it was i sovereign matter for ukraine. and they didn't do anything about it. they always voiced a concern about the unrest. they were saying radicals and even fascists were taking part in this proof vacations. and they were saying this was coup detat. they don't want to talk to the new authorities in kiev. >> thank you very much indeed with that assessment of the ukraine interim governments assessment of what happened in mid-february. other news at this hour. u.s. space agency nasa is suspended work with russia because of what he called moscow's continuing violation. they visit nasa facilities. collaboration on the international space station will continue. three russians are among the astronauts currently living and working on board. the kremlin has confirmed that the russian president vladimir putin and his wife have officially divorced. in june last year, the couple made this appearance on state television to announce the end by mutual consent of their 30-year marriage. the couple's two adult daughters have since kept a low public profile. japan has officially confirmed it is canceling its whale hunt. it follows a ruling by the international court on the hague. japan's fischerys ministry will continue what is described as a scientific whaling program elsewhere. president obama has said he's heartbroken over a shooting at ft. hood in texas. one of the u.s. military's biggest army base. four people are dead, including the gunman himself. base command said there is no indication of any terrorist involvement at this stage. he was an iraq war veteran treated for mental illness. he turned the gun on himself after being corned in a parking lot by military police. >> reporter: a swift response to reports that america's largest army base was under attack from within, again. the gunman was a soldier with mental health issues who served in iraq. using a semi-automatic pistol he bought in the area, he opened tpaur on the medical brigade building. >> at this time there is no indication that this incident is related to terrorism, although we are not ruling anything out and the investigation continues. >> reporter: casualties were rushed to this hospital. most of the injuries were the result of direct gunshot wounds. some people are being treated from cuts from shattered glass. all of those hurt are military personnel. >> many people there have been through multiple tours in iraq and afghanistan. they served with valor and distinction. and when they are at their home base they need to feel safe. we don't yet know what happened tonight, but obviously that sense of safety has been broken once again. >> reporter: broken once again because this event is horribly reminisce sent of the mass shoot anything fort food in 2009, the worst ever such event on an army base. 13 fatally wounded and others wounded. hassan, an army psychiatrist about to be deployed to afghanistan, recently sent to death. >> when we have the facts we will address them. we don't have any choice here but to address what happened. and do everything possible to assure the safety of our men and women who work on these bases. >> an investigation is under way to find out what motivated this soldier to open fire. but the incident is once again raising questions about how to keep servicemen and women safe when they are stationed at home in the united states. you're with "bbc world news" with me nik gowing. still to come. high alert off the australian coast. a woman is killed by a shark on her daily swim at a beach in new south wales. go and smell the roses! wanted to go and see a lion up close. this zoom lens is amazing. go and smell the roses! the number of sorry yas who left syria and registered in lebanon has reached 1 million. police officers did shoot dead anti-government protesters in february. malaysian prime minister is continuing to seven for flight mh-370. it disappeared almost four weeks ago. no wreckage has yet been found. time is running out to find the black box flight recorder. it has been coordinating the current search. australia's prime minister has been there too. >> we are here today but our thoughts are thousands of kilometers away in cities and countries around the world where families of those on board wait and wait desperately for news. and in the vastness of the indian ocean where mh-370 awaits. i know that until we find the plane many families cannot start to grieve. i cannot imagine who they must be going through. but i can promise them that we will not give up. >> very little was heard today about the state of the search. nothing much seems to be discovered at all. john donnison is at the dockside port of perth. >> reporter: they are scouring the indian ocean. the past two weeks, there have been 100 search flights and still nothing. the costs are massive. one aviation expert told us today that the search for the air france jet that crashed over the atlantic ocean in 2009 cost 50 million u.s. dollars. he estimates this could be 10 times more expensive. the australian prime minister has been meeting with his malaysian counterpart in perth. he called it the most difficult search operation in history. he said while there was no guarantee of success, he said no effort would be spared. so for the moment no talk of giving up despite the massive costs. it has now been one month since the malaysian airliner disappeared and still no prospect of finding it. > jon donnison there. a woman is thought to have been caught in a shark attack as they went for her morning swim. she became separated from the rest of the group. her husband reported seeing a large shark in the water. she was a swimming coach. police are searching the area. >> an independent witness was up on the rocks and had seen a large shark in the area. and it appeared that the shark was mauling something. although he wasn't abe to tell what the shark was mauling. an extensive land and sea search has been yon going since then involving helicopters, water police, surf lifesavers and local people as well in an attempt to locate her. >> it is now being called off because of bad weather. to uganda. cases of hiv and aids on the rise again despite awareness campaigns costing billions of dollars. in a deeply conservative society, there's a huge stigma attached. it is little wonder some people strao try to buy a fake hiv negative result. kathleen has this exclusive report. >> reporter: uganda is a young country growing in confidence. but some demons like hiv are proving hard to shake. as you drive around there are billboards everywhere urging people to get tested. despite the long-term campaigns, hiv positive people still face a lot of stigmatization. she has had the violence since she was raped at the age of 10. she has chosen to be open about it. >> when they hear my story they tend to point fingers. you went looking for it. because they don't actually know. they don't understand what somebody goes through. and for quite some time now i haven't been working. because everywhere i go to look for a job, the first thing they ask me is my status. >> hiv positive ugandans are going as far as breaking the law to hide their status. we went to several clinics pretending to be an hiv positive job seeker. >> now i need your help because i know i am positive. but i have to present a negative test at my office. >> and you want to write there what? >> negative. >> after quick negotiation, the lab technician agrees to give her a negative result for about $20. >> will it work? >> okay. >> fine? >> yea. i think so. >> getting a fake negative result turned out to be much easier than we thought. we have plenty of them. we went to 15 clinics and 12 were prepared to give us a bonus negative. one woman who bought a fake result agreed to speak to us but asked that we hide her identity. >> i had to get a fake result so that i can be accepted in this campaign so that i can feed my child, you know? i know it's illegal. what i did is illegal. it's not right. >> experts and activists say this stigma is hurting the country's fight against the disease because it can result in hiv positive people becoming too scared to access treatment. >> i just need your help, please. >> we showed footage to the minister of health. he admitted the government wasn't dealing effectively with the problem. >> this is a challenge for government and the country to put it up and squarely face this program. >> uganda's fight against hiv has been impressive. but unless it tackles the stigma against those affected with the virus, it runs the risk of hiv rates continuing to rise leaving a large section of its population living in the shadows. and we'll have much more at 1730 on focus from affect. we would like to hear from you. share your thoughts about this issue with us. are you surprised by the story? do you require hiv test results to get a job. we want to hear from you using the hashtag fakehivtest. we will be discussing these issues and your thoughts throughout the day on "bbc world news", culminating with focus on africa at 1730 "gmt". let me take you to what i think will be a helicopter shot of london. the arrival of spring usually means a burst of rain showers. today let me show you. it's coming from a helicopter. there it is. it's the city of london. i can see the pictures but i'm afraid we can't show it to you. it's canary -- there they are. the sky scrapers in canary wolf. this helicopter hanging over the city of london. and there other billions, as we will see in a moment, this is pollution. because of dust from the sahara, emissions from europe, and just germ pollution here in london. not a great day to be there. the pollution index is very high. making moves that would put an adult in the 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