>> dozens of refugees are feared dead after a boat sinks off the coast of libya. you are watching al jazeera live from doha. also coming up, human rights watch accuses saudi arabia of using cluster bombs in yemen's civil war. guatemala's president is asked to step down. we meet the children in nigeria

trying to start over. we begin with the refugee crisis. dozens are dead. many of those who died were trapped in the hull when it capsized. >> reporter: the mediterranean sea has become a dark reminder of people's didesperation to ese violence. dozens of people have been killed. in the latest tragedy, an overcrowded boat sank shortly after leaving libya. >> we are migrating, our boat sank. it was in bad condition. the libyans saved us. we have been forced into this

route, the route of death, the grave of the mediterranean sea. >> people are fleeing conflict and poverty to make it to europe. international smugglers take advantage of the chaos. libya is struggling to cope putting those rescued in overcrowded conditions. in another incident a swedish vessel after rescuing hundreds of people from their boat drifting at sea. but dozens others weren't so luck y their bodies found in the hold of the boat. >> this is one of the tragedies we have seen a lot in the mediterranean. first time for the swedish crew and swedish ship. it's one of many. >> reporter: the u.n. estimates more than 2,400 people have died

trying to cross the sea this year. hundreds of thousands made the crossing in a desperate bid to improve their lives. many are families traveling with children. the european union is desperately trying to forge a coordinated traged strategy to l with the crisis. meanwhile, the people keep coming. >> let's go live to rome what more are you hearing about this tragedy? >> reporter: well, for once, it wasn't the rescue operation coordinated by the european union agency, but it was have gone to the rescue but it was the libyan coast guard. the italians don't have much more information. but what we know from the survivors and from sources from within libya is that there were believed to be 400 refugees on the boat.

only 200 of them. this is all we know for now. it's important to point out how the survives say the people on the boat have died. they died because once again, they were locked inside the hold of the boat. we have seen this many times before, only days ago, 50 other refugees died because they were held in the hold, sometimes they die of sufficient case, sometimes they drown because they can't escape when the boat capsizes. they don't have the money to pay for a deck position. costs less to be stuck and held in the hold of the boat. this is really, really tragedy, it has been a tragedy and deadly week in the mediterranean. as you can see in room and in the rest of the mediterranean, including the south, the weather is still great, it is 34° here. the sea conditions are good and

unfortunately, that means that many, many other refugees will try to make attempts to come to europe and many others may die. >> we have seen this time and time again, how many refugees are dieing at sea. what is being done by the e.u. to put a stop to it? >> well, the european union for a while now has been trying to agree on what to do with it for now. they manage to coordinate, to organize a coordinated effort in giving ships and manpower to the mediterranean sea to try to intercept the migrants, the refugee boats before they run into trouble. that has, of course, saved many lives. but unfortunately, many other refugees die as soon as they see

the actual boat arriving because they rush to one side of the boat to take a look at the rescuers or signal or to wave at them. and that many times causes the boat to capsize. so that has been done with a certain degree of effort. in the meantime european leaders continue to meet to find another way out of this. >> thank you for that. austria's interior ministry says more than 70 dead refugees were found in a truck. highway patrol discovered the refrigerated truck. police say an exact death toll will be released on friday. the decomposing body were discovered while leaders met to discuss the crisis. > >> translator: we are all shaken by the incident.

even though they were on the way to places where they thought they would be safe. >> the u.n. is promising to find out who is responsible for chemical weapon attacks in syria. they are recommending an independent panel to bring perpetrators to justice. it follows the rare approval of resolution on syria earlier this month. previous resolutions confirmed attacks. but didn't assign blame. human rights watch says the saudi led coalition is using plaster bombs in yemen. saudi arabia neither confirmed or denied the report. >> reporter: more victims of the war in yemen. there were injured by attacks using cluster bombs. they are from a province on the

northern border with saudi arabia. >> translator: we were together and the rocket hit us. it exploded in the air and cluster bombs fell out of it. before we left the house with the sheep, two submunitions fell down. my cousin and i were wounded. >> reporter: human rights watch teams travel to many areas and met with victims. an exploded cluster bombs litter the area. children especially remain high risk of being maimed or killed by these. >> translator: three brothers were killed, two children, one adult. it hit us while we were sleeping and we were all wounded. i can't walk. my hands were burned and my bones were broken. >> reporter: they are inaccurate. they are designed to target a wide area. here, many people were said to

have been injured as they traveled through the region. >> we have found evidence that ground launched cluster munition rockets have been used in attacks against seven locations in northern yemen. most likely, these rockets were launched from saudi arabia territory. >> reporter: the officials didn't confirm or deny the use of cluster bombs in yemen. >> it's a very large weapon. [indiscernible] most of the record took, unfortunately they have information through the houthi. >> reporter: the kingdom has repeatedly said it will only stop when its confident that the houthi rebels no longer pose a threat to its internal security.

this is a scud missile fired by houthi forces into saudi arabia. the saudi army says the ballistic missile was destroyed in the air. fighting has intensified along the kingdom's 1,800-kilometer border with yemen. the houthis backed by troops loyal to the former president said they would fight for as long as it takes. anticorruption protesters in guatemala are keeping up the pressure on the president to step down. he's becoming isolated after most of his cabinet resigned last weekend. david sends this update. >> reporter: throughout the day thousands have been filing into the central park in a show of force against corruption in their government. in particular, people here are calling for the president to

resign. the president has been caught up in a corruption scandal that brought down his vice president. on friday, the country's attorney general put in a request to the court to have the president impeached for alleged involvement in the same multimillion dollars corruption scandal. people say that they are tired of the corruption and they need to have some sort of political change. these protesters are taking place against the background of elections which are going to be taking place in guatemala in a week and a half's time. while people say that the elections might not provide them with any relief, they say that the president's resignation would provide them for a positive start. police have used water cannon against protesting studentings. thousands gathered to complain about delays in government plans to introduce free education. the demonstrate was mostly peaceful until some members

started throwing bottles at police. plenty more coming up on al jazeera. >> that's not a finished job. that's not a full recovery. >> president obama returns to new orleans to mark strides and setbacks ten years after hurricane katrina. plus the pop-up art, a thousand white balloons float over the garden market.

>> hello again. here's a reminder of our top stories. dozens of refugees are dead after the boat they were on sank off the libyan coast. it set off from a western town. officials say it was overcrowded with about 400 people on board. meanwhile, austria's interior ministry says more than 70 dead refugees were found in an abandoned truck. tens of thousands of anticorruption protesters rallied in guatemala calling for the president to step down. he's accused of involvement in a multimillion dollars customs fraud which forced his deputy to resign earlier this year. south korea's red cross asked north korea to consider talks on family reunions. they want them to take place ata

week before a national holiday. the issue was discussed last week during talks to deescalate tensions between the two countries. hundreds of families have been separated since the end of the korean war. the last reunion happened in north korea in 2014. meanwhile, south korea and the u.s. wrapped up its biggest joint military drill. robert kelley is a professor of political science. joins me via skype. good to have you with us. talk us through these drills between south korea and the u.s.? what's the aim? >> every year the united states and south korea cooperate on a series of drills designed to ensure the interop meraabilityty

should there be some kind of war contingency. the north koreans argue they are a practice for invasion. the north koreans protest them routinely. >> is center any truth behind north korea's claims? is there some sort of invasion plan? >> there have been discussions for a long time about what to do if north korea collapses. that would involve the u.s. [indiscernible]. the military would take the point, this is not iraq. >> all these drills do is provoke north korea. so it's having the opposite effect, isn't it? >> north korea is pretty unreliable. it has attacked south korea asymmetrical me trically for decades. they need to have a response and that's why they have to practice

with the united states. south korea has a conscript army. they need to be brought back up and they need constant practice, hence the drills. >> the timing of this one is important. recently we saw the standoff between north and south korea came pretty close to what people suspect might be a military flare-up. what's going to improve the relations between the two countries? >> the north stop pulling prodding south kree y this is led to a spiral that he had ka rated that there were talks. most recent one was back in the first week of august with the land mine attack. it's good we have talks. looks like north is

[indiscernible] progress. north korea is not trust worthy, that's the real problem. >> thank you for that, robert kelley. >> thank you. >> there is a video of floods that killed people. heavy rains caused wide spread damage near the border with china. more than 11,000 people have been affected. tropical storm erika is making its way across the caribbean island of peurto rico. more than 20 others are still missing. erika caused extensive damage. floods wiped out roads and swamped villages. it's expected to reach hurricane status as it approaches southern florida on monday. it has been ten years since hurricane katrina devastated new

orleans. u.s. president barack obama visited the city and met with some resident whose were able to return, but for many others it hasn't been possible. >> this isn't president obama's first time in new orleans. he marked anniversaries of the devastation before. but unlike previous visits, he talked about with the city's rising poverty, particularly amongst its african-american population, addressing a crowd in the lower 9th ward, he tackled the issue head on. >> our work here won't be done when almost 40% of children still live in poverty in this city. that's not a finished job. that's not a full recovery. >> reporter: outside the new $20 million community center, residents waited to catch a glimpse of president. he remains popular in the community, but many have complaints about what they see about the uneven recovery. >> they should have gave it to

the people here, but they didn't. the people were black and poor. >> to rent a one bedroom home is $900. the rental issue for housing, the market is skyrocketing. >> reporter: to compound that, the lower 9th ward still carries visible scars. to witness the challenges president obama was talking about, you only have to walk a couple of streets from where he made his speech to see things like this. less than half the population returned to this city. and to address the challenges of wealth disparity, jobs and rents may be the biggest challenge. despite the challenges, new orleans has made progress. the president acknowledged that and their efforts hadn't gone unnoticed. >> i'm here to say, i'm here to hold up a mirror and say because of you, the people of new

orleans working together, this city is moving in the right direction. i have never been more confident that together we'll get to where we need to go. you inspire me. >> reporter: the president's focus on poverty and race will be welcomed by many. tackling those problems may take many more years. >> colombia and venezuela recalled their ambassadors over a border dispute. they declared a state of emergency. the move followed an attack on army officers it blamed on colombia militaries. migrants living in the area. colombia is calling for an emergency meeting of south america nations. international talks in controlling the arms trade are taking place for the first time. delegates from more than a hundred countries have gathered

in mexico. there is a controversial multibillion dollars business. >> reporter: guns have long flowed into mexico. there are so many illegal weapons floating around, the government has run programs to exchange them for cash and toys. it makes it an appropriate place to meet with the arms trade. >> translator: we are ensuring that weapons don't reach the wrong hands of terrorists, organized crime or those who want to violate human rights. it's important progress. >> reporter: the same, to hammer out details which would make an arms trade treaty operational. those include empowering a secretary who will police and enforce transparency on anything

from handguns to tanks, fighter planes and warships. >> a promise of a more peaceful world. i commend those states promoting responsible arms transfers. >> reporter: the hope is it will decrease the violence in syria, south iraq. memories are still fetch of u.s. authorities allowing a large number of illegal guns to pass into mexico. that plan backfired. a number of people died. it's one example of what this treaty is looking to prevent. the biggest challenge remains persuaded countries to be transparent. not easy. fighting has broken out between police and political candidates in haiti.

candidates were contesting results from the elections. scuffles broke out when police tried to escort them out. the rerun is being planned in some areas. it's been over 500 days since the group boko haram abducted nigerian school girls. parents continue to call for their release. 57 of the girls managed to escape, but the fate of the others is unknown. boca that ram violence made thousands of childrens orphans, most live in camps. but one school is offering them a new start in life. >> translator: this is what boko haram doesn't want them to have, an education.

these children ar have parents killed. they are schooled. but the transition has not been easy. >> we are trying gradually to bring them out of the bad experience, let them forget about some of the bad experience. you can see addressing a process, it's a gradual process and coming out eventually from the bad situation. >> reporter: it's been six months since they have been here, trying to adjust. the children may be making progress, trying to be kids again. but most of them may live with the experience for the rest of their lives. some of them have seen what no child should ever see. many are still in shock. boko haram fighters decapitated his father in front of him.

he says very little and is detached from the rest. he tells me he wants to be a doctor to help people in pain. his adjustment to life has been particularly hard. the impact of violence are physical and psychological. he was shot in the face and the four-year-old is having nightmares and behaves abnormally. the school has 100 children. and more are expected. >> translator: for us to take care of this in the primary school. we believe it's a matter of when and determination. we shall not allow these children to be disadvantaged in terms of normal growth as individuals. >> reporter: back at the school it's playtime. at least to help take their minds off what they have been through, the teachers say they keep asking when their parents will come for them and when they

are going home. a hundred thousand white balloons have been installed in london's gardens. it's part of the invasion series in which he uses light balloons to fill space. he explains why he chose london. >> i'm a photographer. i use balloons. after this installation, it's a metaphor of of a huge first. and this huge earth i have created a bridge with the past. i wanted to collect it with the pass. and to refresh their memories. >> every year we try to bring a bit of culture into the garden.

it's surrounded by art, culture and performance. part of it is dna. what charles is able to do is by his art installation is mary the contemporary with the historic. it takes five to ensure the balance. [indiscernible] and i put a light inside. like the rhythm. when i have been contacted, i decided to come and to discourage this place with a new heart, to try to find an idea, it could be interesting. >> a little strange, different, i guess. it's cool, i like it. it's kind of beautiful. it reminds me of thunder and

lightning coming out of the clouds. >> one is going to walk around wondering what is this. it's amazing. >> our website, the address, www.aljazeera.com. the mentally ill are more likely to land in prison than hospital. saturday is the 10th anniversary of hurricane katrina making land fall in louisiana. while the category 3 storm brought destruction.