deal with iran. he called the agreement a horrible deal that should never have been done. and, ignoring the pleas of some his closest allies, he said he would impose the highest possible level of sanctions against tehran. in response the iranian president, hassan rouhani, ordered his officials to be ready to restart the enrichment of uranium at industrial levels. but he added that he would reach out to the other signatories of the deal, to keep it in place. efforts are underway to strike a different nuclear deal, this time with north korea. after meeting china's president xi, kim jong—un is set for more talks with us secretary of state mike pompeo, who hasjust arrived in pyongyang. the meeting paves the way for a summit with president trump in the coming weeks. now on bbc news, our world. a hunt is under way.

basra police, on the back of a tipoff, think they've found their target. a suspect they believe has been dealing in the highly addictive and illegal drug, crystal meth. kidnapping, extortion,

organised crime are already part of daily life here in basra, iraq's second city. now there's a new threat, crystal meth. i've been invited tojoin the police frontline. this is the elite force that goes out every night on raids to try and crack down on organised crime in this city. they think the suspect is inside.

major mithak is leading the raid. with him, officers from the counter—narcotics unit and swat team. injust two years, police have made more than 4,000 drug—related arrests. at police headquarters,

they're keen to show off the results of their efforts. today, hundreds of suspects are being paraded in front of the cameras. the police want to show the local media, and i suppose the community, the arrests they've made and the progress they're making to crackdown on crime basra. general abdul karim is leading that effort. a war veteran, he recently returned to basra from the fight against isis in the north of iraq. 0k, we're going to go and meet some people whose been arrested. wow, 0k. when did you arrest these guys? where were these guys arrested?

police say consumption of meth has been doubling year—on—year. so you found all these weapons? that's crystal meth. how many grams? 0ne. ig. so why has crystal meth taken hold in this city? weak border security has meant drugs have flooded into the country, and economic collapse with youth unemployment at almost 50% means there's a ready for the drug. after years of war, occupation and insurgency, the locals here had hoped their city would become the next dubai. but there are no skyscrapers here, just high unemployment, crime and corruption.

at basra general hospital, psychiatrist doctor al sabbagh has been seeing more patients come forward with meth addiction. what is the scale of the problem? in 2015, the iraqi government, together with the us department of health, ran a study looking at addiction in basra. there were once high hopes

for iraq's second city. oil production in basra province generates 95% of the country's oil wealth. but most residents don't see any of that. this is jumhuriyah, one of the poorest most densely populated parts of town. most of the young people here haven't finished school, they're out of work.

jumhuriyah is notorious for gangs and drug dealing. shallal rady, who is 21, has never worked. so do you feel safe here? what about drug users? hello, how are you? nice to see you.

i went to see shallal‘s family. salaam—alaikum... they're struggling to get by without electricity or any clean water. his father has serious health issues. what do you think about iraq now in comparison to what it was like when saddam was in power? the swat team are on the move again. this city is awash with weapons left over from the war and the fight against isis. the team are looking for their second target.

young men of the house are hauled out of their rooms. but the man they are after is missing. what has happened? it is hard to ignore basra's crippled infrastructure.

and it is in these impoverished districts where crystal meth addiction flourishes. many addicts and dealers end up here at the prison. this man is the deputy governor. what are the issues you face here? prison authorities have had to expand detention centres to cope with the numbers of attics and dealers. major, this is one of the rooms?

how many people in this room? and this is a combination of drug dealers and drug users? yeah. you just keep them all here together in one room? yeah. i am taken deep into the prison to see what the conditions are like for those who have been convicted. quite overwhelming. i mean, i've been to many prisons in many parts of the world but to see these people just crammed into here, they take shifts sleeping so one person will sleep and one person will stay up all night and then they swap.

it's incredible. i mean, the conditions are really bad. do they go out at all? what kind of drugs did you have? crystal. how did you start using crystal meth? what about your family? what were they seeing?

your wife didn't know? ali hammoud has already served ten months of a five—year sentence for dealing. how did you become a dealer? and did your family know you were dealing? the drugs trade has been driven partly by the security vacuum left when forces were sent to fight isis in the north of the country. general abdul karim wants to show me

the smuggling route. so general, where are we going? but with so much security here, general, how were they able to get across the border? a porous border here between iraq and iran means the southern province

has become a prime smuggling route. back injumhouria, i've come to the shisha bar to catch up with 21—year—old shallal who i met earlier. i'm meeting up with his friends, who are all angry with the government in baghdad. what about drug abuse? that's a big problem here in basra as well. it's 3am in the morning and the swat team are honing in on theirfinal target in jumhuriyah. meth addiction is fuelling crime in the city. and it's young men mostly who are the perpetrators. 15 years after the fall

of saddam hussein, iraq is in a fragile and perilous state. with all the attention on the fight against isis in the north, basra and the predominantly shia south feels forgotten. and it's the young who are paying the price. another iraqi generation

at risk of being lost. hello. wednesday gets off to a fine start for many of us but for some it's not going to last as we get rain heading in from the west. we saw a weather system move through on tuesday. this one here, the leading edge of cooler air so things cool down for many. not quite into east anglia and the south—east of england, but in the day ahead, that process is complete. low pressure to the north—west of us and that's feeding in cooler, fresher conditions across all parts, and a bit of rain, as i mentioned, coming into the west. although most will start fine

and dry for the morning, single—figure temperatures under clear skies but some in east and south—east england still around 10 or possibly 11 degrees. your eyes will be drawn to this weather system that will soon in the morning turn things wetter into northern ireland, into western scotland, the wind picking up as well, quite gusty into the western isles but it's really coming in very slowly so a lot of cloud increases ahead of that. many will be staying dry even on into the afternoon, particularly across eastern parts of the uk, and still some sunny spells into east anglia and south—east england, but temperatures here down significantly compared with recent days. that's how we end the afternoon. going into the evening, some of us will be getting a wet evening rush—hour. some heavy bursts affecting western parts of scotland beginning to pull away from the western isles, patchy in nature to the east of scotland, not much into north—east england and clearing from northern ireland some will get the sun coming back before the end of the day, but more of wales and western england starting to get outbreaks of rain pushing into parts of the midlands too.

much of eastern england will be dry and once this weather system crosses all parts, wednesday night into thursday morning, there isn't a huge amount of rain left on it. after the heat of the recent days if you want something on the garden, i think you're going to be disappointed. dry weather on thursday. there'll be a few showers developing, though, particularly into scotland, maybe the odd heavy one with a rumble of thunder. northern ireland and northern england, the rest of england and for much of wales, it is looking dry, variable cloud and sunny spells. 0n the breezy side, if anything it's a little bit cooler still and some of us for the rest of the week towards in the north—west of the uk in particular will find temperatures below average for the time of year. another fine start for much of the uk on friday, but then we see another weather system gathering out to the west. the winds picking up ahead of that. while many on friday will stay dry, some will start to the outbreaks of rain. some uncertainty about the timing of this and the progression north—eastwards, so we will keep you updated, and temperatures still none too special.

that's it for now. goodbye. welcome to bbc news, broadcasting to viewers in north america and around the globe. my name is mike embley. our top stories: president trump is pulling the us out of the iran nuclear deal, and says he will reimpose the highest—level sanctions on tehran. the fact is, this was a horrible, one—sided deal, that should have never, ever been made. it didn't bring calm, it didn't bring peace, and it never will. iran's president reacts with anger. he orders officials to prepare to restart enriching uranium, without limitations. france, germany and britain express regret. barack 0bama calls it a serious mistake. the eu's top diplomat says she is determined to preserve the deal. after april's surprise meeting, us secretary of state mike pompeo