Of abdul killing all seventy one people on board. Iran marks thirty nine years since these limeade revolution president Hassan Rouhani calls for a year of unity. Among to go across the querent bridge project in costa rica where reforestation efforts could provide an important lesson for the rest of the world. And im far is smiling del pop our top sports story a seventeen year old takes gold on day two of competition at the chung chang Winter Olympics red gerard is the youngest ever bored when. Russias transport prosecutor has confirmed that all seventy one people on board a passenger plane that crashed shortly after takeoff from one of moscows busiest airports have died investigators at the scene say they are looking at all possible causes a spokesman from sorry tell the airline says there were no concerns about the technical condition of the aircraft well the short haul plane took off from yet of the airport on sunday it was just a few minutes into its journey to the city of or sq when it went missing from the radar as the plane is though ought to have crashed near the village of good nova which is near the russian capital moscow witnesses that say they saw a burning aircraft forming from the sky peter shop reports. The answered off one four seven disappeared from radar five minutes after takeoff in difficult weather conditions wreckage was found across snow covered fields near the village of all going over eighty kilometers southeast of moscow rescue teams were unable to reach the crash site by road and walk to the scene. I saw the explosion on the ground and i called Emergency Services that asked me many questions i told them there was a fire it was very visible the short haul saratoga airlines jet took off from Moscows Domodedovo airport early sunday afternoon it was heading to the city of or skin the urals most of the sixty five passengers on board were from the region with debris scattered over a wide area Emergency Services said there were no survivors russia has suffered several major air crashes in recent years in december two thousand and sixteen a t. V. One five four military aircraft crashed into the black sea with the loss of ninety two people it was blamed on pilot error in october two thousand and fifteen a russian air bus crashed in sinai there were two hundred twenty four people on board eisel said it had placed a bomb on the aircraft at the airport or sgt family and friends of those on board the flight began to gather to wait for news but with little hope that anyone has survived. The Russian Transport Ministry says several causes of the crash are being considered including pilot error and bad weather conditions peter shop al jazeera. Of for this voyage allans joins us live from moscow and the crucial on says to the cause of this crash a lie in the discovery of the black box flight recorders how is the recovery operation going. Well its a tricky one of the moment and i think its tricky for a couple of reasons is tricky because theres been such heavy snow fall in the Moscow Region over the last week or so that its really making life difficult for the crews on the ground trying to find the wreckage sift through its collects bodies and body parts and do a leg room work its also difficult because essentially the sort of the debris has been spread over such a wide area and the plane seems sort of disintegrate to so much that again finding individual pieces the plane finding body parts that sort of thing is made doubly difficult the flight recorder is obviously going to be essential for the investigation and working out why this plane plummeted out of the sky so shortly after takeoff it seems to have been a relatively new plane there of course of being as you said reports that this plane was burning when it came out of the sky. The question has to be why did it do that. The country is basically slipped into a kind of mourning for think now weve got. To putin the president sending his condolences the Prime MinisterDmitri Medvedev has done that as well putin has basically changed his plans for monday he was going to be going down to sochi to meet with the the the Palestinian LeaderMahmoud Abbas that meeting is now going to be taking place in moscow where you can monitor the investigation also rory what about the relatives of the passengers on board this will be a very difficult time for them all they getting the help and support and information that they need. Well it was because it is a small city in a fairly remote part of russia or its down in the southern tip of the ural Mountain Range the year olds basically separates european russia from siberia and i think you know youre going to find that in a place like vats the local Emergency Services and the administration is not particularly well set up to deal with this kind of situation but you know they will be getting through it. Of course i think the what will happen over the coming days will be crucial and of course when its determined are what brought this plane out of the sky that will definitely affect the way the russians perceive this tragedy if it turns out that this was Something Like the bomb that brought down the plane in the Sinai Peninsula then the kremlin is going to have a different difficult messaging job on its hands and its going to be try and see if the trade this to the russian people as a century like it was last time russia under siege russia under attack and russians have to come together all right well thank you very much roid challenge bringing us all the latest from the russian capital all of them again he is an aviation specialist and professor of Mechanical Engineering at Howard University he joins me via skype from lubbock texas thank you very much for taking the time to speak to us so the information that we have so far suggests that the plane vanished from radar just shortly after taking off there have also been eyewitness reports describing a burning plane falling out of the sky thats how they say it happened what does that indicate about what might have taken place on board. Well thank you for having me this morning mary and in our speculative conversation based on spec the tip eyewitnesses this point. Mike my take on looking at the debris spread. Makes some concern when you have a plane falling out of the sky which playing student not do and if there is a plane fall out of the sky with a firearm board that means some cut some type of catastrophic event occurred on board that could be associated with the engines or it could be associated with pilot error as your report has just said or it could be to some other type of foreign object on board and god forbid to the families that that has occurred again my condolences go to the families for. The loss of life that has taken place today this plane is basically a ninety five foot plane ninety five foot weighing spread. And it basically carries about ninety five thousand pounds a payload and then you have the engine which is that the four three deep four thirty six which really has a thrust to weight ratio about five point six so its a pretty consistent turbofan engine conventional high bypassed her profession engine they just run normally and usually theres really not too much of a trip problem the plane basically has about three thirty eight hundred miles to twenty six hundred miles and range so its a short haul aircraft so this is supposed to be a nonet then full flight but something went wrong here planes again do not just fall out of the sky suddenly so the black box by the russian investigators who have have at least one of the black recorders will be able to reveal just to the rest of world some Additional Information what was happening when. This flight was climbing to without two of about eleven thousand feet in the around seven thousand feet is just dropped out of the sky is so thats what the black box will be able to tell us a little bit further and im hoping that the russians opened up to the world and let the frenchie be a inside to take a look and also the National Transportation safety board of america to take a look at this situation because there are some great investigators in those two agencies that to help at further insight because most importantly when plane fall of the sky and people die the first thing that people want to know in the first twenty four to Seventy Eight hours stepped its up to two hours is what happened what happened in this particular case yes it. Was information that we have so far would suggest that it all happened very suddenly quickly and unexpectedly and i know we have to exercise some caution as to what caused this crash but just from. What the facts that we know so far do you think an engineering or a technical fault is more likely than pilot aero ole the foreign object you mention. Well ninety percent of all crashes according to the f. A. A. Is due to Human Factors errors but when playing fall out of the sky and then im concerned about this is a very large one kilometer. Greece spirit that says that something happened in exploding the aircraft and spread it out is that when you think about an airplane crash theres usually a fire when it hits the ground or hits a certain small spot but when you have such a wrought grease bridge then theres a concern about something breaking apart the aircraft when it was falling out of the sky and then more important to have planes disappearing from radar screen than from air Traffic Control thats a concern too because you dont have the pilots on board speaking to air Traffic Control and thats a concern so right now we have questions lots everything is speculative into the black boxes is basically told over and allies very very carefully i do so again suggests multiple Safety Agencies looking at this so you have different perspectives to provide insights and then as we get that data unfold the next seventy two hours we will know. All right well thank you very much appreciate you sharing your analysis with us nikky joining us from texas thank you very much for having me marion our other top story this hour irans president has called for a year of unity is his country celebrated that he nine years since the Islamic Revolution in the wake of violent protests last year half an iranian cold on all Political Parties to put their differences aside and look to the future with a united front famous ravi has moved from toronto. In a state of the union style speech irans president listed the governments successes rouhani focused mostly on domestic issues speaking about things like Economic Growth what iran is doing to address the impact of Climate Change and irans ability to manufacture military hardware like tanks and antiaircraft Missile Defense systems all part of a successful effort he said to have security independence and a larger role in the region saudi give those out just. In the course of the last year we overcame terrorism we achieved great victories over i saw in the region. Help to the people of iraq and syria through had good results and the people of the region got rid of evil terrorists indirectly addressing recent protests by opposition groups rouhani acknowledged shortcomings saying the government must do more to resolve what he described as a backlog of Economic Issues show ya gotta buy on of all the government needs to be more transparent and we need to resolve banking issues address taxation and budgeting and correct the economic structure of the country. For the hundreds of thousands of iranians who joined a celebratory rallies thirty nine years later the Islamic Revolution is a continuing way of life honey told the crowd that they were the most important part of ensuring the success of the islamic form of government in iran about oh yeah and again our are here. Elections are the biggest part of protecting the Islamic Revolution people voting in their leaders in parliamentary and president ial elections that when someone is elected the opposition and they used to lead should respect the choice of the people in syria chanting slogans go to the ballot box. As he often does the iranian president extolled the virtues of dialogue over conflict he said the lasting solution to region wide problems is political settlement and as far as internal conflict ronnie said iranians should not hold grudges rouhani said victory in the one nine hundred seventy nine revolution was like a train with many passengers some stayed on some got off now he said was the time to bring everyone back on the train again. Well in all the developments of prominent iranian canadian professor has died in prison in iran sixty three year old environmental activists say ed and mommy was arrested last month on the allegations he was part of Aspiring Police say he committed suicide in custody but his family say they dont believe that human Rights Groups say detainees in iran are routinely tortured and killed. Youre watching the news hour live from london much more still ahead for you looking at the scandal surrounding a leading British Charity oxfam with revelations staff prostitutes in chad as well as haiti. Israels Prime Minister vows to continue operations in syria a day off to one of its fighter jets was downed on its way back from a mission their. Boss alone and to stay on beaten in the Spanish League will have that story and much more later in school. Full screen as an impact delegation has left south korea after a world when three days which ended in a diplomatic offer that aims to end seventy years of hostility the group which included the powerful sister of north koreas leader kim jong un left on a private plane on sunday they wrapped up their visit by joining south koreas president lungi in at a concert given by a north korean troops on saturday kim yong extended a rare invitation to president and jai in to visit pyongyang and going to him has more from seoul. Even as computed on the snow and ice diplomatic developments continue to steal at least some of the spotlight during whats being called the peace olympics the last three days have been historic and a high point in interest in relations north Korean Leader kim jong il sister kim jong became the first member of the ruling family to cross into the south since the korean war she came with an invitation kim jong un is asking the south korean president in to visit pyongyang at a convenient time soon if this meeting transpires it would be the first time that kim jong il has met with the south korean president since taking office in twenty eleven president moon says it will begin a range. In the conditions to make that visit happen but he stresses that any rebuilding of if your korean relations must involve dialogue between the United States and north korea u. S. Vice president mike pence sat very close to the north korean delegation during the Opening Ceremony he m. A North Koreans rebuffed president moons attempts to facilitate a midi skeptics say that this north korean Charm Offensive is heavy on the symbolism but they doubt that it will result in anything substantive they say this is an attempt by the North Koreans to drive a wedge between the United States and the South Koreans into an advance their own agenda but for now president moon and Many South Koreans are encouraged by the prospect that what weve been seeing could be the beginning of a reboot of it or korean relations the u. K. Is threatening to withdraw funding from oxfam the charity is facing growing criticism over the way and the allegations of Sexual Misconduct by its workers in haiti where they were working in the aftermath of the twenty ten earthquake its an investigation into the allegations that to four people being sacked and three others resigning the charity is also facing fresh allegations that it staff used prostitutes in chad in two thousand and six it doesnt matter how good the safeguarding practice is all in an organization if the organization does not have the moral leadership to do the right thing and where in particular they have evidence of criminal activity to pulse that information to the relevant all sources including prosecuting authorities thats thats an absolute absence of leadership at least six civilians have been killed in government as strikes near the syrian capital damascus two children are among the dead in tax targeted several towns in the rebel held suburb of Eastern Ghouta it falls within deescalation zones endorsed by Turkey Russia and iran. Well the United Nations is calling for an immediate the escalation of fighting in syria to address a worsening humanitarian crisis according to its food agency nine Million People need food assistance. And is the country director for syria for the World Food Program he says any truce needs to last for at least a month at the moment thought keeps us from going to these places to ease calle