caught on camera. belgian police say these are the men behind the deadly bomb attacks in brussels. the armed group i.s.i.l. claims responsibility for the blasts at the airport and the metro that killed at least 34 people. you're watching al jazeera live from doha. coming up in the next half hour, the u.n. refugee agency pulls its staff from lesbos and other greek islands in protest against the detention of refugees. u.s. president obama completes

his three-day historic visit to cuba on an optimistic note > belgium's prime minister has called for calm in his country over what he calls is a black day. i.s.i.l. has claimed responsibility for the explosions in brussels that killed 34 people and injured dozens of others. police are looking for this particular man seen pushing a trolley through the crowds. the two other men in this security camera photo are believed to have been the suicide bombers who detonated their devices inside the airport. meanwhile vigils are being held in cities around the world in solidarity with belgium. the eiffel tower, as you can see, lit up with the colors of the belgium flag. while in brussels crowds have gathered across the city to mourn the victims.

the bombers targeted the airport and a metro station in back-to-back bombings. the attacks were timed to target commuters and travellers. it happened at around 8.15am local time. some say gun shots were also heard. an hour later an explosion occurred on a commuter train at the maelbeek station in central brussels. it is 100 metres from the european department. the attacks took place in the west of the suburb. that is where the alleged organiser of the paris attack salah abdeslam had been shot and arrested by police on friday. as belgium comes to terms with the events of the last 24 hours, people there are asking why the bombers targeted the city brussels. jacky rowland reports. >> reporter: it is the end of a traumatic day. people take a moment to honor

those who died and to think of those who even now are fighting for their lives. there are so many questions. how could this happen and why did the attackers choose brussels. >> being a city very close to me that i love, and i've been living here for quite a while, it came as a shock and it was hard and honestly today has been emotionally exhausting. >> the metro station, it is a place where you go every day to go to work. you don't think anything could happen there. >> reporter: to begin answering those questions you have to go back to last november. police quickly established a brussels connection to the paris attacks and raided homes in the district. they were looking for members of a cell that planned and coordinated events in paris. that search culminated dramatically in the capture last

week of the primary suspect salah abdeslam. it had taken police more than four months to find him. he had slipped through their fingers on several previous occasions. it was in the building behind me that belgium police finally arrested salah abdeslam on friday night. security officials warned at the time that in these networks when one cell is closed down, others are often activated. that seems to be exactly what has happened. in percentage terms, belgium has seen more of its citizens travelling to syria than any other country in europe. this area and other deprived areas have proved fertile ground for i.s.i.l. recruiters. the for young people without jobs, prospects or hope, the i.s.i.l. message is simple and seductive. >> what i.s.i.l. was interested in here was groups of small

criminals, drugs dealers and so on. they're approached by hate preachers, as we call them, who turn their mind and this may happen in a very short time. >> reporter: the timing of these attacks just days after the arrest of salah abdeslam cannot be a coincidence, but the bombings appear to be more than just an act of revenge. after all, brussels hosts the e.u. and nato headquarters. this seems to be an attack on the heart of europe and all it is meant to stand for. jacky rowland we can go now to brussels where it has just gone past 6am in the morning and our correspondent dominic kane is standing by. dominic, brussels is just waking up now, the day after these attacks. just explain to us what the mood is like there?

>> reporter: belgium is now beginning three days of mourning out of respect for the victims of the explosions and the many wounded in knows explosions. certainly there is a-- those explosions. certainly there is a sense of shock. people feel that this is something that they will to have get used to. the editor of a prominent news outlet wrote that she believed that this was something now that is becoming part of the system. this is something that people have to get used to. that they will have to explain to their children the issues of threat and life has changed. that gives you the perspective of how the feeling is seeping into the psyche here. there's also the sense that the calculated attack on the european institutions, the fact that the station was targeted so close to the parliament, to the commission, to the council, to the very fabric of the structure

t the targeting of those people. that gives you a sense of the mood here of the feeling that has developed around the city given it has become associated with the sort of violence that we've seen in recent days and weeks there is a manhunt for the third suspect that ask underway at the moment. have police released any more information about him or his whereabouts? as you say, there is a very considerable manhunt in action now to find that third individual, the person seen on the cctv wearing the hot and the blueish-white shirt. there was speculation that a taxi driver had come forward to the police and said that he believed he had driven the three suspects to the airport yesterday and that he told the police the address that he had picked them up from, the police

went to that address and the suggestion is that that is where they found the bomb-making equipment, the bomb vests, the chemicals, the names that would seem to have been part of the explosive devices that were used. so that is something that the police have definitely been following up on, and the sheer number of police on the streets is an evidence of how serious they're taking the operation. hundreds of police andsome jers are patrolling the streets and that gives you the degree of magnitude of trying to crackdown these people that are responsible you talked about the security situation might be something that brussels and belgium may have to get used to. of course, it is because of this security lock down. is transportation, that is been affected a lot and how is the

city coping? >> reporter: very much so. long queues here. there is a very clear operation in place to try to secure the area and that means logically delays. certainly the airport here is closed and many other of the main transport infrastructure hubses, as it were, are either closed or operating at a minimum level and with so many areas closed, tunnel networks are still closed, which means that grid lock is a way of describing the transport network here, but many people in brussels believe that they can put up with the transport infrastructure being subdued, as it were, if it means that the police can try to get

hold of the people who are responsible for what happened yesterday. thank you for that moving on, the u.n. refugee agency has pulled its staff from camps on lesbos and other greek islands. it says the camps there have become detention centers. >> reporter: for refugees arriving in greece the u.n. has been a welcome sight. whether they meet the boats or travelling on foot, staff from the u.n. agency have been guiding people to the camps which have become known as hot spots. not any more. >> under the new provisions, these so-called hot spots have now become detention facilities. so accordingly and in line with u.n.h.c.r. policy on imposing man dree detention, we have

suspended some of our activities at all of the closed centers on the island. >> reporter: the u.n.h.c.r. says the deal between the e.u. and turkey which is supposed to stop the flow of refugees through europe is being prematurely implemented and without safeguards. new rivals are meant to be able to supply for asylums but it means they're detained in their camps. apparently they are held against their will. it will continue some services, including counselling for refugees traumatised by their journey >> it has a mandate to protect refugees. it doesn't have a mandate to detain them. it's not going to be involved in processing and facilitating mass departation. it is there to protect them and to see that they get proper information. they will continue to do those things. >> reporter: greece has begun sending thousands of refugees

back to turkey, but more still come. only now when they land the blue tabs of the u.n. won't be there to greet them. rob matheson the u.s. military has launched an attack on a training camp. the operation has struck a blow to al-qaeda's attempts to launch attacks. forces both loyal to and against the exiled government say the strikes were coordinated with the saudi-led coalition against houthi rebels. still ahead here on al jazeera, we look at nepal's attempt to put an end to child marriages in the next 50 years. >> reporter: it is the largest contemporary art fire here, but what is the economic downturn having on the market in region. region.

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you're watching al jazeera. belgium police have released security camera images of the suspects involved in the attacks at brussels airport. the two men on the left are thought to have died when their suitcase bombs exploded. a manhunt is currently underway to find the third suspect. 34 people were killed in the explosions. i.s.i.l. has claimed responsibility for the attacks. u.n. refugee agency has pulled its staff from camps on lesbos and other greek islands.

this is in protest against the detention of refugees arriving by boats from turkey. it began after the e.u. turkey deal came into effect on sunday. e.u. representatives are in indonesia to discuss how asia-pacific nations are dealing with refugees and human trafficking. the final day of the summit is taking place on the island. ministers from 47 countries are discussing ways to stop people smuggling. our correspondent is live from us. tell us what's coming out of this summit? >> it has been a tragic year for refugees and migrants, not only in europe but also in south-east asia. we had around 8,000 people from rohinga, myanmar and bangladesh migrants stranded at sea just a year ago. around 3,000 people perished at

sea and it tooks governments weeks to take action. a lot of boats were to youed back and refugees were left astray. eventually the government did make a decision to rescue them and give them shelter temporarily. to prevent all these crisis happening at sea, the meeting here is focusing on a so-called mechanism to have a more rapid response during humanitarian crisis at sea that would happen again in the future. i'm joined by the foreign minister from holland and the chair of the e.u. well to our program. >> thank you. >> reporter: you have praised the asian nations for the humanitarian approach last year, but at the same time europe seems to be backing away more from this humanitarian approach with people being sent back to turkey, refugees being detained

in greece. what is happening with the humanitarian approach in europe? >> i think what we're trying to do in europe, after long delays, is to find an approach for asylum seekers to find a legal way to europe. what you see right now, and it is the problem here in asia, that people come by boats, smugglers, by the networks that are creating the possibility for many people to die and perish. the only way to stop that is to have a different method, and to block the illegal road and make sure there is one that is a humanitarian road. it means that the greek and balance done route is stopped, but the alternative is that people are on the basis of international conventions, and international humanitarian law, processed, sent back to turkey for a possibility also to have a legal route to europe. i think that's the only way we

can stop this illegal trafficking of migrants you have to admit that europe unfortunately can't really share any best practices if you look at the refugee crisis. so what are you telling the nations here in asia? what should they learn from that? >> i'm only saying we know how difficult it is to deal with this. first and foremost the humanitarian imperative remains important. we have 60 million people in the world who are refugees or migrants or looking for a better future beyond their own country. in the end we have to look at the origins, why do they leave, human rights conflicts. we have to make sure that if not the smugglers who deal with their fate, or show solidarity for those who are seeking asylum or seeking other reasons for moving. that is the dilemma.

i think we're all confronted with that question unfortunately, i have to leave it here. thank you very much for your time. the deliberations here in bali will continue for the next few hours and then we hope to announce this new mechanism, ministry declaration on how to deal with the people of smuggling and human trafficking here in the future in south-east asia thank you for that. u.s. president obama has raised in argentina after an historic visit to cuba. obama and his cuban counterpart stressed their commitment to bring their nations closer together. there were clear differences as our latin american editor explains from that vav a-- havana. >> reporter: a message for the cuban people >> i have come here to bury the last remnant of the cold war in

the americas. because in many ways the u.s. and cuba are-- and cuba are like two brothers who have been estrained for many year. >> reporter: the speech at the grand theater was broadcast live throughout cuba. this woman watched it intently as obama said he believed in the right of citizens to free speech, to organise, to criticise their government, to proceed pest peacefully without fear of arbitrary arrest and the right to choose their government in free and democratic elections, all this without u.s. interference. >> translation: i would love to embrace him, not just see him. there are so many things we need to change. >> it takes time for those circumstances to change >> reporter: there were also words directed specifically at the president. >> i believe my visit here demonstrates you do not need to fear a threat from the u.s. i am also confident that you

need not fear the different voices of the cuban people >> reporter: with that, obama went directly to meet with cuban dissidents, more than a dozen opponent of the communist government who are divided on whether the u.s. president's visit halts or hinders their cause. >> translation: the main thing is that in contrast to other european and latin american dig that trees who a-- dignatories, he came to visit us. >> reporter: before leaving he attended a symbolic baseball game between cuba's national team and an american major league team. critics of the u.s. president at home are certain to accuse him of not having been tough enough with miss cuban counterpart. the leaders of both countries are navigating unchartered waters, both uncertain of how this new chapter in

cuban-american relations will ultimately play out. both leaders will be out of office soon. while the cuba's president saw off his american guest, serious differences remain, but for many ordinary cubans, that is no longer an impediment to friendship brazil's president dilma rousseff has accused opposition protesters of trying to stage a coup. there have been massive demonstrations in recent days calling for her to resign or to be impreached. critics say that sympathy appointed lula da silva to protect him for corruption allegations. child marriage is a problem in nepal with almost half the girls married by the age of 20.

>> reporter: this is a 17-year-old and she is a mother of two. her husband is 18. when they were 13 and 14 their parents came together and arranged their marriage. this village here, it is normal for children to be married early. >> translation: i knew i was getting married, but i didn't know what it meant. >> reporter: her husband says i didn't know i was getting married. my parents got me married. now four years later she is still angry at his faurth. his father says he arranged the marriage in line with traditional ideas >> translation: it is our culture t our society speck our children to be married early >> reporter: they had to quit school. he is work as a ticket collector on the rural bus service. >> what is the traditional belief, cultural practices and existing gender inequality.

that definitely needs to be tackled. that does take time. for anywhere, but that change can take place. >> reporter: it has one of the worst rates of child marriages in the world. according to unicef 41% of girls are married before their 18th birthday. the legal minimum age for marriage is 18. statistics suggests that four out of five girls here get married before the age of 18. parents as well as the children seem to understand that it's illegal, but social pressures are so high that even activists who want to lodge complaints against these child marriages face the pressures themselves. we found this 14 year old who married 25 year old. their marriage has given rise to the only court case brought this year in this district. her mother has taken her own parents to court after they

arranged the marriage for their underwaej grand-daughter. she insists she is 18 and there are no documents to prove her age. >> translation: i'm married because i fell in love. my mother is a bad woman. she says. the human rights activist has to tread carefully. >> translation: even the police are hesitating to take action against people. the rich get away with impunity. it is only the poor and powerless end up getting caught. >> reporter: they hope to age child marriage by 2030. back in the villages, many girls are still getting married early, all in the name of honor and culture just a few hours ago a rocket was successfully launched to resupply the international space station.

the atlas 5 rock is unmanned and is carrying equipment and food to the space station. the outsourced shipping to companies. the weather conditions were ideal. one of the world's biggest modern art fares has opened in hong kongment this year's art is showcasing artists from asia. art collectors are keeping their purse strings tight. >> reporter: it is the art fair with everything, paintings, sculptures, huge installations, interactive pieces and unusual and unique digital works. there are nearly 240 galleries showing this year from 35 countries, hassle of them asian. >> the arlt scene is generally younger in asia in comparison to

the west. they do make up in the sense of commitment and passion and the way that they grow. >> reporter: there are the big names and the blue chip galleries, but the focus is also on the emerging artists. some have solo exhibitions and each one is trying to create edgy pieces that stand out from the crowd. >> translation: my work is to create a variety of pieces and possibilities using sound. >> reporter: this is not the only show in town this week. there is an array of art fairs and exhibitions around hong kong. this man was born in beijing but moeft to spain. he has returned to the region to grow the modern art scene. >> translation: after i came back, i wanted the collectors market to grow so these works could be introduced to more people >> reporter: this is the fourth

year in hong kong. organisers are hoping that more events planned, this will translate to greater interest from local and regional collectors, in particular, the big buyers from mainland china. >> reporter: the contemporary art market is still young in china and this art fair is about seams as much as educating the local audience. >> the art collecting and buying in this region is still traditional conservative classical chinese art, but the thing about asia, like so many other things is that people learn very quickly >> reporter: the downturn appears to have put a damper on the market with art auction sales across china down on previous years. even so, the organisers are optimistic about business this week >> we do have the mainland chinese coming. we've got australians, japanese, koreans, a lot of great

collectors. i think it will be a great show >> reporter: one they hope will bring a fresh perspective on asian contemporary art for all the latest news and analysis, you can head to our website at aljazeera.com >> i'm ali velshi on target tonight the bombings in belgium. how a tiny country has become a big focus in the global fight against terrorists. what a harrowing day for belgium. two explosions ripped through brussels airport. a third explosion rocked the metro station just a few miles away. more than 30 people have been killed. hundreds wounded. within hours isil claimed responsibility. thou