tonight" hopes of help for those in need in em vinnie as a five-day ceasefire comes in to effect. hello, this is the world news from al jazerra. also ahead reports that north korean's defense minister has been executed for disrespecting disrespecting lead leader kim i don't think un. more deaths after the earthquake. >> reporter: i am rob reynolds on the navajo nation in arizona.

where obesity and diabetes are rampant and the local government thinks a new tax on junk food might go the solution. in yemen there has been reports of fighting despite a ceasefire which came in to effect late on tuesday. the five-day truce was proposed by saudi arabia at that a how in humanitarian aid. the houthis continue bombing. at least 10 people killed in shells. taiz was one of the cities targeted in the latest wave of coalition air strikes. and others were also hit. the new u.n. on voir to yemen is in sanaa to hold talks in an effort to insure that the ceasefire holds in order to allow in food and medicine for people who urgently need help. shortly after the ceasefire

began we spoke to one resident. >> there is a breach now as we speak. i can hear the gunfire missiles have been fired. as i am talking to you now someone has been shot. they are targeting two areas and now there is a martyr and he is in a very bad state. there is an attempt by the houthi to his take control of the entrance of the town and as i am talking to you now, there are loud speakers in the area that the houthis are gathering and there is a big number of they. >> the former u.s. assistants secretary of defense says a ceasefire is in the best interests of both the houthis and the saudi-led coalition. >> by tomorrow things will have calmed down and you want a get some assistance in there because the saudis and the houthis are losing the battle for world opinion the way that they were actioning. and if the houthis keep on doing

these things that they have done today, it's going to hurt them and i think they recognize that it's much better when the saudis stop given the damage that they can cause with their aircraft. u.n. envoy left and you know, he's now coming back and i think that what he can do is get the parties together. and i think with the iran who was like to put this behind them as they focus on the nuclear negotiation, obviously the united states is more concerned with isil, and they would like this to stop as well. so i do think that there is hope if the houthis with backing from iran or pressure iran stop lay cy lading the ceasefire. >> iran has announced it will sends warships to yemen to protect its aid vessel heading towards a houthi-controlled

port. the decision has further raised tension between iran and saudi arabia. a saudi coalition spokesman says iranian ships will not be allowed in yemeni waters without valid documents and without being searched. the u.s. says it is monitoring the shipment and has urged iran to show restraint. south korea's intelligence services say north korea's defense minister has been executed. they say that the chief of north korea's armed forces was killed by firing squad. he is believed to be the latest in a series of senior regime officials that have been execute third degree year. harry fawcett has more now from the south korean capital seoul. >> reporter: south could a'ssouth korea's says it happened on april 30th and was done very publically and brutally. he was killed in front of an audience of hundreds of people. his offense, according to south

korea has treason constituting disobeying instructions of kim jong un or not carrying them out showing dissatisfaction with his leadership and perhaps most intriguingly the fact that he was pictured falling asleep next to kim jong un at a military events towards the end of april. this was a senior figure. second in command of the military. last month he was seventies at an envoy to moscow as the two countries prepared for kim jong un first foreign visit that was due to happen at the beginning of this month and did not. russia said that was because kim jong-un had to attends to internal affairs, this is far from the first public execution if it is such. so far we only have the south korean intelligence services say so to go on. in the past north korea has confirmed high-profile executions such as kim jong's uncle and before him the former

military chief. so far no confirmation from pyongyang that south korea is convinced that this very senior man has been killed. a rescue operation in nepal has resumed after the country's latest deadly earthquake. at least 65 people died in the 7.3 magnitude quake which hit less than three weeks after the quake that left more than 8,000 people dead. the latest intercepter was near namche in eastern nepal close to mount everest. andrew simmons reports from the capital kathmandu. >> reporter: reliving a nightmare just when people had begun to believe this they could return to something near to normality. crush injuries, head injuries, fractures, some of the medical staff are in shock as well. this quake may not have been as big as the last, but kathmandu's hospitals are overwhelmed again. no one wants to be inside a building when what follows is half a dozen aftershocks within minutes. on the casualty listen sides this hospital is a man who was

running on orphanage filled with children. >> i tried to jump out of the building then i was hurt. then my children was all crying and scary here and there. >> reporter: this is one of the landslides caused by the aftershock. it's in the north of the country. an area that had only recently been cleared after previous land slides remarkably, no one was hurt. parliament was in session when the quake struck. after a few seconds of disbelief. deputies started running from the chamber. outside there is panic with people trying to get through on cell phones to relatives and friends to tell them they are alive. >> translator: it was shaking like this. and everyone started running. everyone left and went to an open area. this place is dangerous. we have to leave. >> translator: people have become scared in their minds they don't know how they'll live, eat and work. going in to a building you don't know what will happen. >> reporter: search teams found themselves trying to save lives

again. dozens of collapsed buildings in the capital alone. many more in the rural areas to the east of kathmandu near the epicenter. as if one major earthquake wasn't enough. this was a family home. an american search team is now deploying. and this bass a 19-story apartment block now totally destroyed. there is a high level of fear in some cases here is terror that exists now. many people are fleeing the capital. but they'll find little comfort out of the city. andrew simmons, al jazerra kathmandu. a passenger train heading from washington, d.c. to new york city has derailed in philadelphia. killing five people and injuring more than 50 passengers. firefighters climbed in to the crashed amtrak train to rescue those aboard. amtrak says there were about 238 passengers and five crew on board and six carriages we want off the tracks.

a federal rare road administration says it sent a team of investigators to the crash site. >> full response. fire police, department of homelands security, amtrak, and other -- and the state police, i have talked tkpwoufrp are governor wolfe and his chief of staff they are very concerned about the incidents. giving full support. all act agencyies actively engaged and involve i have been on the tracks with my staff. it is an absolute disastrous mess. never seen anything like this in my life. john kerry has said that sanction on his russia could be lifted in moscow honors the ceasefire agreement for eastern ukraine. pro-russia separatists and ukrainian government troops have been fighting since late 2013. kerry held talks with russia's president for the first time since the ukraine crisis began rory challands reports from

sochi. >> reporter: john kerry's first engagement was at the sochi's war memorial. president obama like most leaders shunned the victory celebration last weekend. so this was the u.s. government's opportunity to honor russia's role in defeating the nazis. then at least eight hours of diplomacy began. first a meeting with foreign minister air game lavrov. then to the russian president's sochi residence to talk with vladimir putin iran, syria yemen and ukraine a long list of talking points. and it's a sign of how fraught u.s.-russia relations are that just talking was the trip's pain goal. >> this was an important visit at an important time. and we didn't come here with an expectation that we were going to define a specific path forward with respect to one crisis or another or have a major breakthrough. we came here purposefully to

have a very full and open dialogue with russia's leaders. >> reporter: it seems ukraine's illusive peace demanded the lion's share of discussion. the u.s. made it clear once more that normal diplomatic relations depend on finding it. >> if and when minsk is fully implemented, it is clear the u.s. and e.u. sanctions can be begin to be rolled back. >> reporter: fight unleft without speaking to the press his foreign minister was tasked with articulating russia's position. >> translator: one of the key issues of our discussions was the crisis in ukraine, there are certain contributions relating to the origins of the crisis in the country and our assessment of the way it's developing but we share the view that it's only possible to resolve the issue through a comprehensive and full implementation of the minsk agreement. >> reporter: the considerable joint progress that's being made on a nuclear deal with iran is

an indication of what can be achieved when u.s. and russian interests actually alignment but that's one bright star in a pretty dark sky. and despite gamely talking up their agreements, washington have so much more that divides them. so make what you want of the diplomatic gifts exchanged here. an album of anti-u.s. russian media quotations and a brief case for sergei lavrov. some potatoes, tomatoes and a patriotic t-shirt for john kerry. rory challands, al jazerra sochi. still to come on al jazerra why fink printing holds new fears for migrants making their what i to europe. and how the navajo nation is using a food tax to beato bees at this. beat obesity.

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♪ ♪ welcome back. the top stories here on al jazerra and there have been reports of fighting in yemen where a ceasefire came in to effect late on tuesday. the five-day humanitarian pause was proposed by saudi arabia to help bring much-needed aid. a u.s. passenger train has derailed north of the city of philadelphia killing at least five people and injuring more than 50 passengers. officials say there were about 245 people on board. south could a's intelligence services say north korea's defense minister has been executed. they say the chief of north korea's armed forces was killed for showing disrespect to north

korea's leader kim jong un. let's get more on this story and we are joined from kerry brown from the china studies center there sydney university. thank you so much for being with us, we know his father and grand fa their were known to have jailed their opponents and dissidents. but kim jong un prefers to execute them. what does this say about him as a leader? >> well, i mean, in fact it's been quite common in the whole history of the democratic people's republic of korea to deal with opponents in this way. the odd thing really is that kim jong un is relatively new in his position he's only been there about three years and he hasn't got a great basis. his father was really influential 20 years probably before he actually became country leader in the early 1990s. and so you know, kim jong-un was in his early 30s we think but we don't know and doesn't have a

secure base, this seems tonight an extraordinarily brutal way of dealing with people that might have disagreed with you maybe even worse. they have actually tried to move against him. quite a number of executions have been apparently noted make one a month in the last few months, so it looks like a very vicious purge. >> if, as you say he doesn't have a very secure base, are we then starting to see the start of the end of the kim regime? >> a diplomat who had been based in pyongyang said to me some years ago, two or three years ago, what we are looking at here is a creaking sort of system that is falling apart. and i think that's been true of the last 30 years it's been bad news recall the time. economically. politically the regime has held together by writhelessly holding this core 100,000 strong elite military looking after them and making sure they stay onside and

are reliable. this implies that evening within that group there are people that just don't think this regime is sustainable. the problem is that they don't really have a plan-b. there is no plan hb. they either sink or swim together and it seems that kim jong-un is willing to basically you know, kind of totally throw these people way if they get on the wrong side of him. very very, kind the categorical. >> let me put it to you that could plan-b come in bay beijing ties from north korea and china have been strained since kim came to power in 2011. could china affect a regime change if the situation becomes even more instable in north korea? >> well, i think in the past there was a lot of allegiance under china's previous leader there was a talk of the two being very, very close like lips and teeth. china has not the leader since becoming leader in beijing in 2012 once been to north career actual the usual protocol is he would go there first and then go to south korea. in fact he went to south korea

last year he hasn't set foot in north korea. and in most of what he said is pretty disdainful or very, very kind of distant to what the leadership inky jong yang is doing, they have tried to make the leader hip see in pee pyongyang and very little dabblings in mark tie saying in north korea but nothing significant everything that kim jong-un has done so far has increased the sense of a kind of north korea that is daze trainal of china and a china that is really disdainful of north korea. >> thank you very much, sir for your insight. from the china studies center at sydney university. malaysia says it will turn way boats carrying migrants unless they are in danger of sinking. a boat full of row hinge ga ans were turned back monday.

indonesia is saying it will not allow the boats to enter their waters, thousands of migrants have arrived in malaysia in the past flee days. in the me like an island where many row thing an migrants are being detained and we have this update. >> reporter: hundreds of of migrants are being processed by the immigration department here on the island after arriving on boats earlier this week. these migrants need to be moved from to detention facilities on the mainlands, we are hearing these facilities are already overwhelmed by the number of people they are being asked to accommodate. a senior maritime official said they will not allow anymore of these vessels in to their waters unless they are in distress. hasthis has received sharp reactions and said it's

tantamount to signing the death warrant of potentially thousands of desperate and very poor migrants that could still be out at sea. >> mean while. the migrant crisis in europe is being discussed by the european union leaders it's expected they will announce plans to deal with people smugglers in libya and a system to vettel migrants across member states. italy is strug to go cope with the influx of migrants and as stefanie dekker reports many fear being fingerprinted. >> reporter: they fear for their families back home so they don't wants to be identified. all from eritrea they know the implications of being fingerprinted by the italian police. >> because most of us we don't have intentions to stay here, like some -- like i want to go to the u.k. and, some of my other friends want to go to germany, holland nor norway f they stay here that means they won't be able to go outside.

>> reporter: if they take their fingerprints? >> yes, that's why they don't want do it the. >> reporter: there have been case where his refugees have arrived in their country of choice and have been sent back to italy because they were fingerprinted here. we are told air try ans and syrians are often allowed to refuse but there has also been cases where migrants are forced to give their prints. it all has do with the european migration law that is randomly enforced at bell. it's called the dublin regulation and deals with who is responsible for pro tessing a migrant's a sigh lamb application, under the regulation, it should be the migrant's first port of landing. italy is struggling to process the claims. there have been more than 160,000 asylum claims sense 2011 and more than 64,000 draft year alone. meaning those that arrive can wait for a year for their application to be processed. >> translator: the dublin regulation is completely

outdated. the three e.u. border country can't implement it because of the enormous amount arriving. sometimes italian authorities don't even ask for fingerprints, so it affect public security as many travel on unregistered. >> reporter: the european union is discussing how to deal with these people. but the risk they take in search of a bet and are safer life will not be solved by military force. >> we know that if we take the risk, we could die or we could leave. so basically our life is in our hand. so if you ask why did you take that risk? it's because we are not safe in air tryeritrea. >> reporter: migrants say they will continue to make the desperate journeys and that needs to be take then to consideration, al jazerra

sicily. riot police in peru. it's the latest in the recent string of violent protests against the mine. they say project will pollute particle land in the southern city. the demonstrations which began in march have killed at least three people and injured more than 200. one of the largest ice shelfs is in danger of collapsing in ants arc at that and would mean a rise in sea levels. new research have discovered that the ice shelf is melting above and below the surface in one of the fastest warm he regions on earth our environment editor nick clark explains. >> for years there has been intense scientific debate about what is causing the thinning of the ice shelves. this is one of them right here. it isit covers a huge area the size of a small country and contains

vance quantities of fresh water ice, scientists have been unable to determine whether it's warmer air temperatures or warmer ocean currents making it more vulnerable to collapse. turns out it's both. an international team of researchers studied radar and satellite data from the last 15 years and found that ice was being lost above and below the surface and they are now predicting the shelf could collapse within a century maybe sooner and with little warning. >> we found that the ice shelf was losing ice and this is probably due to ocean mething from below. -- melting from below. and losing air from the snow and this is probably due to atmospheric warming. so what with we know now is that the ice shelf is subject from a two-pronged attack from above and below. >> two neighboring ice shelves collapsed in 2002 and 2004. this led to the glaciers behind speeding up carving more ice in to the ocean and so raising sea levels and it will be the same story but on a larger scale if larson sea was to disintegrate.

>> larson sea is bigger. and if it were to be lost in the next few decades then it would actually add to the projections of sea level rise and the rate of sea level rise by 2100. we expect that sea level rise around the world will be something in excess of 50 centimeters higher by 2100 than it is at presents and that will cause problems for coastal cities and low-lying cities. >> so what this discovery means is that scientists will be able to make more accurate predictions about just what effect the break up of the larson sea and indeed the recession of glaciers around the world will have on global sea levels. nicaragua's most active volcano has erupted sending ash hundreds of meet nurse to the sky t ghani resulting thursday. the eruption isn't extreme enough to force people in the

surrounding vim villages to evacuate. the u.s. navajo native american community is in the midst of a public health cries i.pop at this and eye diet high in sugar fat and processed foods are affecting the reservation residents in arizona. now the reservation's elected officials are trying to discourage unhealthy eat buying leveeing an attack on junk food. rob reynolds explains. >> reporter: overweight and suffering from diabetes and a navajo nation member rosalind russell admits she doesn't always eat healthy food. >> a lot of times, you know, i would crave for a chip or a drink or something like that. and i know it's unhealthy but you know, we can't actually stay away from anything like that. >> reporter: in many parts of the navajo nation, population 260,000, poverty and unemployment are high. remote areas have no fancy supermarkets selling fresh fruits and vegetables.

most reservation shops like this one are stocked with junk food and little else. doctors say the result of poor diet is rampant illness. >> there is definitely a crisis happening right now in navajo nation in relation to health. we are seeing really escalating rates of obesity among children and adults. >> reporter: according to the u.s. government's indian health service, native americans are more than twice as likely to be diagnosed with diabetes as white americans. attempting to stem the growing tide of chronic disease especially among young people the navajo tribal government has imposed a 2% tax on junk food a law believed to be the first of its kind. the tax expected to bring in several million dollars a year which will be used to pay for health education and exercise facilities. navajo nation vice president jonathan pushed hard for the new

law. >> people are looking board us for leadership on this, and i think the united states as well as the counties and the states, global communities have a lot to learn from what navajo did. >> reporter: not everyone thinks that the junk food tax is a good idea. >> do they know that we can't afford, you know, all of this. >> reporter: the owner of this store boxer declined to speak on camera, says sales have gone down since the tax went in to effect in april. a longer term solution to health problems says navajo president russell is to return to traditional foods and eating habits. >> we have subsifted on desert economy. and we have gotten away from that. the desert economy sustained us, living off the lander roots berries and things that they grew themselves. we need to get back in to living

off the desert. >> reporter: an ancient land and it's a people struggling to gets back on the path to a healthy life. rob reynolds, al jazerra fort defines, arizona. quick reminder that you can always keep up to date with our news on our website at aljazerra.com. crime could have big consequences america needs a smarter war on terror, and pakistan, a key ally on the front since 9/11 stands accused of playing a double game with al qaeda and the taliban. controversial allegations from investigative journalist seymour hurst are making some wonder whether much of what the obama