this is bbc news, the headlines: president trump has called for vulnerable people to use the measels vaccine. it comes after two universities in california declared a quarantine to try and contain a measles outbreak. students and staff at ucla and california state who've had contact with confirmed cases have been ordered to stay at home. sri lanka's prime minister has told the bbc he did not receive the warnings of an impending attack, before the easter sunday bombings. ranil wickremesinghe admitted there had been a serious breakdown within government. libya says it has agreed to extradite the brother of the suicide bomber who hit an ariana grande concert in manchester back to the uk. the recent fighting around tripoli, however, has put the process on hold. severe flood warnings have been issued in mozambique after cyclone kenneth — the second in as many months — hit the coast. there are fears that hundreds of thousands of people will need humanitarian aid

the british and irish governments have announced that talks to break the political deadlock and restore the devolved government in stormont will resume, in the wake of the death ofjournalist lyra mckee. a group calling itself the new ira has admitted it was behind the attack. our ireland correspondent emma vardy reports. about a minute before the shots were fired that killed lyra mckee, three men are seen walking towards the rioting — one carrying a crate of petrol bombs. with him, a man wearing a camouflage face mask and what police think is the gunman. it's believed they're all in their late teens. the man in the mask is seen lighting the petrol bombs and later on, another image believed to be of the gunman after the shooting. police believe that's this man, who stepped out from behind a wall, firing at police, but whose fatal shot killed an innocent bystander.

for some in northern ireland, talking to police carries a huge stigma, but officers have paid tribute to the overwhelming support they've received from people in derry. but today made a new plea for others to overcome fears about coming forward, saying witnesses will be protected. the reassurance i want to give to people is that i am able to deal with those concerns and those worries really sensitively. all i'm looking for is a conversation. more than two years since the collapse of northern ireland's power—sharing arrangement, the death of lyra mckee has brought divided politicians together, but it's also sparked renewed public anger over theirfailure to form a government. why in god's name does it take the death of a 29—year—old woman, with her whole life in front of her? applause. i get the sense that people want our politicians to move and they want them to move now.

and by that, i mean entering into those talks, and in a way that will actually bring a positive result at the end of them. today, the secretary of state for northern ireland and the irish foreign minister announced plans to try and re—establish power—sharing after the local elections. we've been here repeatedly before, when previous talks have failed, what makes you think a fresh round of talks will be any different this time? you're right, emma. this isn't the first time talks have been called, but it has been some time since the parties have been together. i think what we saw last week, what we saw this time last week, with the party leaders coming together — it really gives me clear indication that the party leaders do want to do this. but major sticking points between them remain. i welcome the fact that we now have a process. we will come at it with a good heart. we will come at it with an attempt to try and find resolution. but what we need is not talks for talks‘ sake. it is important that we move forward, with a willingness to get a deal that is a balanced deal. of course, the talks last year ended

because there wasn't a deal and, you know, no amount of sinn fein saying there was a deal will make it a deal because if there is to be a deal, it has to be agreed by both sides. the events in derry which led to lyra mckee‘s death were a throwback to northern ireland's past. the question now is whether this tragedy can lead to political change for the future. now on bbc news — with toxic water in the southern iraqi city of basra causing tens of thousands of people to fall sick last summer, martin patience investigates iraq's environmental catastrophe. last summer, the city felt sick. the streets of basra erupted in anger.

the cause? the city's water supply. a toxic cocktail that is poisoning the people. this is cancer. if we don't fix this, this cancels red. we runa don't fix this, this cancels red. we run a journey from the mountains of northern wright to the southern marshes to investigate the country's environmental catastrophe. and understand how the city of basra has become the country's drain, the centre of the crisis. where all the filth ends up. —— wright. a little over 15 years ago, none of this existed. the marshes had been drained but in 2003, they were brought back to life. the threats now are very different but pollution, a lack of water as well

as climate change. if people keep dumping raw sewerage, poisons, toxins... of course, it is catastrophic. 0ur journey 0urjourney to trace the routes of this crisis begins in the mountains of northern iraq. a lunar landscape that brings to life the rest of the country. the rainfall from here feeds iraqi's two great rivers, the tigre ‘s and the euphrates. they gave rise to mesopotamia, the land between the rivers, home to one of the earliest civilisations, now modern—day iraq. the water up here is at its most pristine. untouched, you can drink it straight from the

streams. but almost as soon as it i’u ns streams. but almost as soon as it runs off the mountains, it becomes contaminated. this is a rubbish dump sulemaneiyah, one of the biggest cities in northern rock, and everything gets dumped here. this is one of the most extraordinary things i've ever seen and it looks like pa rt i've ever seen and it looks like part of the landscape, and that is the point. all of this is leaching into the river. the problem may start here but the consequences of it are really being felt downstream. 0urguide, it are really being felt downstream. our guide, nabil, once worked here. he worked as a forklift driver overseas but the beauty of a rock brought him home. now he is an environmental activist, dedicated to cleaning up the country's waterways

and he says iraqis need to wake up to the nightmare they've created. this is cancer. if we don't solve, if we don't fix this, this cancer will spread obviously. you can see this is sliding down into our life, which is our drinking water so it's going to affect our food, our children, ourfish going to affect our food, our children, our fish and going to affect our food, our children, ourfish and creatures, insects, bugs, everything so the cancer will spread so we need to kill this cancer, yes. ifi cancer will spread so we need to kill this cancer, yes. if i was to fall into that, would i survive? no. you would be lucky if you survived. this is the deadliest liquid, this is pure litter and we've been dumping oils for the last ten years and of course, the garbage going through the oils in the letter plus sulphur, asphalt, heavy metals, everything in this. pure poison. yes, this is pure contamination in its pure poison. but it's notjust

the quality of —— quality of iraqi's water, is the quantity as well. dozens of dams have been built across the region. iraqi depends on its neighbours for 70% of its supply. but now only gets half the water it wants did. the dukkan lake, a massive reservoir, contains a precious resort —— resorts but after a nerve—wracking boat ride, nabil shows me how it's been squandered. this is bride and groom ‘s gorge. it's a very famous place. people come here for a visit, take a selfie and they go back. this is a selfie spot because it's so beautiful. but

then you see this. itjust makes it very sad. this is what we drink, this is a drinking water. it takes is ten minutes and people don't see this place, they think we have the dukkan lake reservoir, it's beautiful and clean but if you go deep to the dead end, this is a dead end, you will see the reality. well, we are finally free from the sludge. there is more up ahead. sadly. the beating heart of the country is the capital, baghdad. it's the next stop on ourjourney. for almost a0 years, iraqi has been consumed by war. it's the only thing it's iraqi has been consumed by war. it's

the only thing its planned. but baghdad is rapidly growing. its population is expected to swell to 10 million people. this isjust lovely, wandering through one of the most famous streets in baghdad and to think, a decade ago, this would have simply been unimaginable. the security situation was so out of control but it's a sign i suppose of how much this country has changed since then. the city's infrastructure was built decades ago and it can no longer cope. so baghdad dumps all of its raw sewerage into the river, flushing the problem downstream. but nature is no longer so forgiving. how high

did this river used to be? is the level the same as it was in the past? no, no, it is not the same level. you can see the edge over there. it used to be that high. so it would be covering those reeds way above us? exact. much less. and it never gets that hi again. what does this river mean to you?” never gets that hi again. what does this river mean to you? i think this river is the main source of life because you know, civilisations started here, one of the biggest civilisations of humans started here so this is something meaningful for me. it's very precious. it's precious. well, this is the historic city of baghdad, home to more than 8 million people. in the life of this city is the tigris river. but as you

move down it, the more polluted the tigris becomes. it's almost as if iraqi is poisoning itself. it's nearly 500 kilometres from baghdad to the city of basra. it's home to the country ‘s main port and once fertile farmland. but now, it's hard to find freshwater here. and the rising salinity of the water is having a crippling effect on the city. this was basra last summer when the city erupted in anger. protesters we re city erupted in anger. protesters were furious about corruption, unemployment and poisoned water. the

authorities cracked down hard. more than a dozen demonstrators were killed. basra was a broken city. this one—day protest because the city's leaders as the scum of the earth. a city once known as the venice of the east had become a vision of hell. its canals, a symbol of corruption and dysfunction. the sweltering summer heat turning this into a toxic stew. this tens of thousands were rushed to the us hospitals suffering from stomach cramps and serious diarrhoea. doctors and doctors were

overwhelmed. the city had never seen a health crisis on this scale. it was basra's slums that were worse hit. people here live in toxic filth and have limited access to clean drinking water. meet a housewife, she shows me the family's water source. her children all fell sick. several spent two weeks in hospitals. it was the whole neighbourhood sick?

basra should be a wealthy city. it sits on top of oil. it is also whether countries are too great rivers converge. this is the shatt al—arab river. the big problem le sommer was there was not enough water coming down the river and that is incredibly important to flush the system because you have the river fighting the sea. the sea is pushing up fighting the sea. the sea is pushing up in the opposite direction and it faces resistance from the river but le sommer it was the sea that won the battle and the water became incredibly salty and that is a real problem because this is the main water source for the city of basra.

and if that was not bad enough, basra dumps all its raw sewerage into the river. it was sitting here, stagnating in the summer heat. i went to meet the man who has responsibility for the country's water resources. we have a lot of tests. there are some traces of heavy metal which should not be in the water but i do not think it is the water but i do not think it is the cause. it is a mixture of sewerage water in the shatt al—arab river annecy water and the scarcity of clea n river annecy water and the scarcity of clean water which makes this water not fit for human consumption. if people keep dumping raw sewerage, poisons, toxic... of course, it is

catastrophic. the increase of population, the increase of sewerage, this will destroy the river. it will destroy everything? it will destroy the quality of water they need to drink and to supply everything they need. the government says it is investing in water treatment process to prevent a repeat of le sommer‘s prices but iraqi cannot do it on its own. —— last summer. it needs help from countries including iran. we have been meeting a lot of officials and they have been incredibly open and informative but as soon as you mention the word iran they do not

wa nt to mention the word iran they do not want to talk about that and that is a sign of the arabian influence in the city but several of those officials told us that iran is the source of some of the pollution that goes into the river behind me. last summer was a glimpse of our estate can shatter when it fails to provide even the most basic of services. —— a state. the government offices were set on fire by protesters. this is a ct plagued by corruption and shi'ite militias. 0ne ct plagued by corruption and shi'ite militias. one of the protest leaders says that is killing basra.

what do you want from the government? erotic sits on fabulous wealth but basra has not seen any of it nor have the arab marshes, a world heritage site larger than many arab countries. we are just leaving the

main town in the marshes and heading out into the central waters. i am excited. i am very, very excited. it isa excited. i am very, very excited. it is a place of shimmering beauty. it stretches for as far as the eye can see. the miracle in the desert, only made possible by the country's to great rivers which flood this plane. it is little wonder then that some believe this was the original garden of eden. this road was built in the 19905 of eden. this road was built in the 1990s by saddam hussein when there

was an uprising in the marshes and he crushed that rebellion and in order to punish the people here, he drained all of the marshes. the people may have returned but life remains tough here. families depend upon the marshes but they have been three droughts in a decade. and last year, is shrunk a quarter of the original size. there simply wasn't enough fresh water. and for the buffalo, that was a killer. and if they cannot survive then neither can they cannot survive then neither can the community. these animals provide milk, meat and money. this man has been rearing buffalo all his life but last summer he lost 20 of his

animals. without water, what is the future here? is there a future here? life is fragile here and what happens to these wetlands will have consequences for the rest of iraqi. this man has dedicated his life to the marshes, is the guardian of these waters.

a little over 15 years ago, none of this existed, the marshes had been drained but in 2002 they were brought back to life. the threat now a very different, the pollution, a

lack of water as well as climate change. the marshes have survived for millennia but they may not last much longer. like iraqi itself, they are facing their gravest threat yet. last summer was a warning to the country that the rivers that created these extraordinary landmass are under assault. and unless erotic gets to grips with its water crisis, millions could be forced to move and away of life could be wiped out forever.

hello. it will be a stormy start to the weekend in many parts it will be a stormy start to the weekend for many parts of the uk. in fact, storm hannah has already brought power outages to parts of ireland. the winds have been escalating through the night and evere gales are expected quite widely around the coast and the hills in the west. this is a deep area of low pressure so late into the season, of course, when the trees are now in full leaf in many areas so we do expect some damage to trees, buildings, power lines and that disruption to transport. there are warnings out there on the website for this storm, mostly for the wind but not entirely because it looks pretty wet as well. we've had one band of rain moving through the night. this next one coming in becomes a slow—moving feature, so with all the cloud around, it's not going to to be a cold start to this saturday morning, but it will be a very windy one. particularly for england and wales where we're expecting severe gales around the coast and over the hills, but inland we're expecting gales,

gusts up to 55 miles per hour, which is pretty unusual anyway, and remember, we are late in the season now. as well as that we've got this rain which will be persistent across parts of northern ireland, south—west scotland, into northern england, north wales, the midlands, across towards the humber and, with that rain and the wind combined, it is really going to feel quite chilly. temperatures barely reaching nine or 10 celsius. to the south, showery, and to north as well with some good spells of sunshine potentially for western scotland. but some heavy thundery showers around too. and the afternoon may bring a strong wind to northern ireland, south—west scotland and the isle of man as well as north—west england and north wales. it will still continue to blow a gale or severe gale further south. a very windy day, certainly not a day for the outdoors. but the winds do ease through the night, and that's because storm hannah starts to blow out to the north sea. and we get a ridge of high pressure building for the second part of the weekend. it's not plain sailing but i think for the london marathon probably the day of the two and almost great conditions for the runners because it will stay cool, we think,

quite a bit of cloud around, i think there will be some brightness coming through, and temperatures will be doing a little better than saturday. however, you can still see this weather front draped into western parts, so northern ireland and wales and south—west seeing further dank weather. further east we'll have the remnants of our weather front. in eastern areas, a few showers around. a cool northerly breezewill be much lighter. 12—15 looking like our highs. they're a little bit more respectable from the days ahead. then high—pressure starts the new week so it could be a bit chilly first thing monday. could be a little bit of mist and fog around, but as the day wears on, we'll start to see this next weather system winding inself to bring some rain into the west. so generally we keep an unsettled picture into early next week. bye— bye.

this is bbc news, i'm kasia madera. our top stories: a race against time — president trump urges people to vaccinate after two universities are quarantined to try to contain an outbreak of measles. anger replaces sorrow in sri lanka in the wake of the church bombings. the prime minister tells the bbc he wasn't aware of the warnings. what you do when you are out the loop? you are talking about not being in the loop? you are the prime minister, you are number two on the national security council. two years after the manchester arena bombing, libya tells the bbc it's cyclone kenneth strikes mozambique, just weeks after idai — 200km/h winds hit the country. and a new exhibition opens exploring the life and work of maverick