hospitals and clinics are no longer functioning. with isil in control of most of the camps, negotiating any form of humanitarian relief seems further away than ever. >> okay. the head of the u.n.'s relief agency for palestinian refugees wants the international community to make sure the people are connected. >> i think what you have to see is that the hour has never been more desperate for civilians in yarmouk than now. we have about -- assisted around

100 of them who have been able to come out and provided them with basic commodities. so for them it's a better situation under these tragic circumstances. of course our worries remain acutely with thousands of people 18,000 among which 3,500 children who remain in a very very dangerous and pre precarriesious kenya is still in mourning after an al shabaab attack at a university on thursday left 138 people dead. one is the son of a local

official. >>reporter: we spoke to multiple officials who told us that one of the gunmen who was killed was indeed a resident of mandera. he's the son of a governor administrator in that border town. they say that he's a law student, a graduate from a very reputable university in nairobi. those who know him described him as a quiet and brilliant upcoming lawyer. we also spoke to a journalist who spoke to his father who confirmed that that was indeed his son. his father said that he went into somolia, disappeared from home last year and immediately he the father informed the government of that. now, people that we're talking to say that he wanted initially to travel to syria to fight along side isis but he could not get a passport. now, another suspect master mind

and the suspected master mind of the operation is also said to be a kenyan somali. he was one time a teacher at a religious school. i spoke to many religious leaders who are saying that for the government to win this battle it must engage the local communities and it must work with the local communities, not against them. >> the families of those who lost their loved ones in the kenya attack now have the agonizeing task of identifying their children. >>reporter: following thursday's attack loved ones were not among those rescued and not among the injured in hospitals. so they queued to see if their

loved ones were among the dozens of bodies. one family wanted us to tell their story so we went in with them to look for their daughter who was studying to be a teacher. her mother found her body. the agony of identifying her own child is made infinitely worse. >> i can't even identify my own child from her face. her skin is burned and she has no hair. i justified her with her folded toe and the scar on her side. >>reporter: the red cross list of survivors has been checked and rechecked before relatives are faced with the heartbreaking task of searching among the dead. it may take days for all the bodies here to be identified. the people coming out are extremely distressed. the process of identifying the bodies is very traumatic.

what i saw when i was in there is definitely the worst thing i've ever seen. dozens of bodies of young people were lined up on the floor. the morticians have done their best to try to make they can identifiable and decent nan some cases it was clearly very difficult. the smell in there is overpowering as well. you can even somehow out here the bodies and the chemicals being used to treat them. prayers and song are among the only comforts. religion is important to many here. the minister of health came to visit. many are questioning the government for failing to prevent the attack. he says he's doing his best. >> it's been of course stringent but going forward we won't have such incidents again. >>reporter: but for people here

it's too late. their ordeal is just beginning. next they have to wait for post mortems before they can collect bodies and have funerals. hundreds of people and dozens of families are struggling and in pain. one person has been killed and two others injured by shelling in mali. the u.n. peacekeeping mission says at least three mortar rounds have been fired in the north. in 2013, a french-led operation in northern mali helped to expel separatist groups and fighters linked to al quaeda but it didn't drive them out entirely two al jazeera journalists held in nigeria have been released from detention. they were allowed to leave their hotel on sunday. they're now safely back in the

capital. they had been covering the military's campaign against the group boko haram. we're pleased their their ordeal is over. i know that both of them want to thank everyone who helped secure their release including ngos politicians, and fellow journalists. still to come. >> i'm not trying to kill any deal. i'm trying to kill a bad deal. >> the u.s. airways to argue against a nuclear deal with iran and a plea for freedom from the family of a convicted drug smuggler on death row in indonesia. indonesia.

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>> here are our top stories on al jazeera. aid agencies are warning of a humanitarian crisis in yemen. water and electricity have been cut in aden where the fighting is most intense. hundreds of people have been killed since saudi arabia and its allies began bombing rebels last month >> hundreds of people have managed to escape syria's yarmouk refugee camp. the camp has been under government siege for two years and is now almost completely under control of the islamic state of iraq. mourners in kenya remember the victims of a university

attack that left 148 people dead. one of the gunman has been identified as the son of a government official. brazil is battling an outbreak of dengue fever. cases have shot up 162% so far this year. hundreds of cities have been put on alert. al jazeera's david mercer has more. >>reporter: this is a city of more than half a million people in southeastern brazil. just an hour's drive from the state capital, it's known for its strong economy. but now the city's residents have found themselves on the front line of a health crisis. >> i have a fever, headache dizziness, low blood pressure. i went to work but didn't feel well so they asked me to come here. >>reporter: brazil is a hot spot for dengue fever, a tropical virus caused by mosquitos.

10% of the cases have been registered here stretching the health system to the limits if the. >> i came here last night but it was really bad. there were so many people. i finally gave up waiting. >>reporter: the local government set up a field hospital to help diagnose the most severe cases. with at least 17 people killed by the fever, treating the virus in the early stables is essential. >> the main treatment we give is hydration. we need to help the body get stronger so it can tackle the disease. >>reporter: government agencies are working to stop the spread of the disease by spraying in areas where mosquitos reproduce but they've got their work cut out for them. a record drought and high temperatures followed by seasonal rains means that areas where people throw their trash are now breeding grounds for

dengue. but it's not all bad news for brazil. the country country is a pioneer in the vaccine to help combat the vie >> 30 days after vaccination, we have an immune logical response. >>reporter: with final tests expected before the end of 2015, it's hoped the institute will soon be producing 60 million doses of the vaccine per year. offering hope for people in brazil and around the world. david mercer al jazeera. >> in a little over a half an hour now, an indonesiaen court -- indonesian covert -- last month but lawyers for the

pair have been trying to convince the court that it has the jurisdiction to hear their appeal. the men were arrested in 2005 as ring leaders of a group known as the bali 9. the philippine government is trying to save one of its citizens who is also facing execution for drug trafficking in indonesia.

she's a single mother with two children. her family says all she ever wanted was a way out of poverty. her recruiter, a close family friend paid for her trip to malaysia bought her clothes, and promised there was a job waiting for her in indonesia. she says she was given the luggage and insists she had no idea she had just become a drug mule. the philippines government has questioned the accuracy of the trial saying she should have been provided with a professional translater and not just a student interpreter. last month, the indonesian government agreed to review her case but for the second time it's refused to lift her death sentence. still, her family says she's been treated well in prison. they say it was indonesia that paid for the first visit to see her in 2013 and that indonesia

has done more for them than her own government. >> since the beginning of ore arrest, our embassy has expended all necessary and appropriate constitutionular actions. >> if you know that your children haven't done anything bad, then no i don't feel bad. i know in my heart she didn't do it. >> her letter in february was an outpouring of love for her family. an apology for no providing a better life for them. and then acceptance of what's to come. in egypt egypt there's been attack on a police station in

the north sinai region. in cairo, three people were killed when a bomb went off. the area is home to a number of embassies and it's not clear who's behind that attack four people have been kimmed and more than 20 have been injured in a suicide attack in northern libya. it happened in the east of the city. the suicide bomber targeted an army checkpoint. >> israeli prime minister benjamin netanyahu has appeared on u.s. television to again argue that a nuclear deal with iran is bad for everyone. iran's government has warned it won't hesitate to return to its nuclear activities if the west doesn't hold up its side of the agreement. >>reporter: a few days after the announcement of the agreement of a frame work to limit iran's nuclear capabilities israeli prime minister benjamin

netanyahu argued that it's a bad deal for the world. >> it leaves a vast nuclear infrastructure thousands of centrifuges will be left spinning uranium. >>reporter: the obama administration's key nuclear scientist hit back at critic who is have said there will be little way to verify compliance with iran. >> we will have eyes on through the international atomic energy agency, the entire supply chain of uranium, continuous surveillance of the centrifuge facilities themselves. if they fail to meet any of these requirements we're going to know through our access and transparency and that will immediately lead not only to us but to the international

community the p5+1 taking the appropriate actions. >>reporter: a lot of work still needs to be done to solid identify the deal. >> the obama separation now has to sell this deal to congress -- iran knows that any future president could have different plans making the final stages of these negotiations all the more complicated. greece says it will pay back a half billion dollars loan to the international monetary fund this week after holding talks in

washington. there were fears athens would default on the loan repayment but greece says it will be able to meet its obligations. greece is fast running out of cash and it's promised reforms in return for bailout funds. six ukranian soldiers have been killed in separatist attacks in the east of the country. four were killed when their vehicle was hit by shelling. in a separate incident a land mine exploded under a military vehicle killing two soldiers and injuring a third. the large hydron collided has started after a $150 million upgrade which has lasted two years. scientists hope they'll now be able to reveal what makes up the universe. >>reporter: back in action and more powerful than ever over the last two years, they've been

busy upgrading the world's biggest particle accelerator deep under the swiss border. in 2012, an unexpected break through was announced. scientists finally discovered the higgs-boson, an elementary particle that gives master other particles earning the nickname the god particle.

>> there would be no atoms no nukeclei nuclei. >>reporter: it contains a ring of superconducting magnets with accelerating structures that boost particles as they hurtle down the tunnel. soon they'll be traveling at almost the speed of light and analyzing their collisions could reveal new scientific secrets. dark matter is the invisible matter that makes up 84% of the known universe but can only be dedetected by its influence on others but there could be many more discoveries. we spoke to a professor at

harvard university. >> the most advanced machine that humans constructed in the sense that it reaches the highest energyies that we ever reached were trying to mimic the very early instance at the beginning of the universe when the temperature was extremely high and when potentially the dark matter was produced. we're trying to do that artificially. we're generating very high temperatures by colliding particles at high energies. if you look at this collider it's a remarkable engineering accomplishment. we currently have a standard model of particle physics that includes the particles that we know about but there are hints that there must be extensions to the standard model. for example, most of the matter in the universe does not belong to the standard model. we don't know what it is and we

call it dark matter and it's quite possible that with this extension of the large hydron collider we'll discover what the dark matter is made of. keep up with all the news on our website, aljazeera.com. ite, aljazeera snowfall one to two feet. so they're now saying we could have snow falling as rapidly as five inches an hour. >> this has been the coldest winter here in eighty-one years. and it coincides with a grim reality. more people in new york city are homeless today than at any point since the 1930s. >> it's really difficult going down to twenty in midtown. snowfall one to two feet. so they're now saying we could have snow falling as rapidly as five inches an hour. >> this has been the coldest winter here in eighty-one years. and it coincides with a grim reality. more people in new york city are homeless today than at any point