Sentenced to death for attacking police. Ukraine ordered withdrawal from armed forces of crimea. Victims of nigerias islamist speak to the bbc about their brutal treatment. Within the past half hour, the malaysian government has said australian search planes have found two new objects in the vast search area in the indian ocean, one circular and one rectangular. Its not yet clear of these are the same possible debris spotted earlier by a chinese aircrew. A u. S. Navy crew poseidon has been unable to find any of the objects spotted by the chinese crew. It went missing 16 days ago with 239 people on board. A few minutes ago the Prime Minister received a call from the Prime Minister of australia who informed him that an australian search aircraft had located two objects, in the search area, one circular and one rectangular. It is possible the objects could be received within the next few hours or by tomorrow morning at the latest. It includes 20,000 nautical square miles. Jonathan head is in perth. Jonathan, can you just clarify. We have had a lot of lines coming out on objects that might have been seen by different crews. Reporter this is very different. They described suspicious objects. They have been flying jet transport planes. An american plane went to investigate but had seen nothing. Special reconnaissance planes fly over the see and well suited for spotting using human eyesight. Authorities said they saw two objects, one gray and green and round, and one orange. These are man made objects. This is a plane coming back today from the search from within the area where the authorities believed the plane that had gone down. Pieces that could very well have come from an airplane. The australian are stressing they are separate sightings. Satellite has been useful in a sense they were never going to be of any use unless they could be confirmed by an airplane flying overboard. They will be marked by marker buoys. It should be possible for the australians to be able to get close to them and possibly retrieve them. The australians are saying they could be received in the next few hours. Presuming they find them. The seas are rough. The currents can be strong. This is a challenging environment to find very small pieces. The whole 17hour operation, there has been so much confusion. Until we picked up pieces that might have come from the plane and had those identified, nobody would ever be sure where the plane was or have any possibility of finding out what happened to it. If these are objects they look like they have come from something man made, if they can be picked up and identified as something coming from the plane, it will be a very, very important step forward. Jonathan head in perth, thanks very much indeed. Now, the acting president of ukraine has decided to withdraw all troops from crimea. President churchill says he redeployed military units and evacuated family members. President obama is in the netherlands to discuss what action to take against russia following its annexation of crimea. President obama stressed that he remained a priority and upheld his commitment to the people of ukraine. Europe and america are united in our support of the Ukrainian Government and the ukrainian people. Were united in opposing a cost on russia for its actions so far. The Prime Minister rightly pointed out it would bring significant consequences to the russian economy. And i will meet with my fellow g 7 leaders later today and we will coordinate with the netherlands and our european partners. Daniel sanford, our correspondent, is there. I dont know how much of that press conference you were able to hear, daniel. How big a blow would it be to russia if they are formally thrown out of the g8. Very striking what you heard. Having to pay for their actions so far. Its an indication how limb the americans know about what russias next move will be. If russia feel like they are thrown out of the g8, then that will be a blow to the pride of the russian leadership. I think this is something they knew was going to happen with when they took the actions in crimea. There will be a period of economic sanctions. The question for them was always how far the west was prepared to go and how much the west would be able to take to its own economies. Thats the unanswerable question at the moment. Governments like germany, france and of course the United States to a lesser extent. How far they had to go to damage their own economies in order to make sure russia answers that it was beyond the pale. Our correspondent has learned of horrific brutality against young women abducted by an islamist militant group. 500 civilians have been killed this year, including 29 boys during an attack on a boarding school. Reporter young men gathering outside the army bare axe after it was attacked. Even young teenagers are armed and fighting this war. Theyre standing over a heap of bodies butchered by the boca haran. I went to the people who survived the violence and have flood the war zone. These girls were abducted. Whilst in captivity they witnessed horrific brutality. 19yearold janet tells me that the fighters tried to turn her into a killer. They went to gaza and brought fight people to the camp and started slaughtering them. Then they told me to slit one of their throats. I told them i couldnt do it. Then the wife of one of the men did it herself. Reporter she sees a chance to escape. One of the captives stood up and said you only die once. Who is ready to make a run for it . Six of us jumped into one of the cars they had at the camp. They chased us on motor bikes chasing the car. Then i realized all three in the back seat had been shot dead. It must be difficult with all of these memories of terrifying things that happened. Translator sometimes i have nightmares because of all the people i say being killed. All the blood and the sight of people struggling as they had their throats slit. It still haunts me. Reporter the scene of devastation at the secondary school. A way of on showing they are against secular education. They stormed the School Overnight and 29 teenage boys were killed. Im heading off to meet a teacher that was there the very night it was attacked. Hes living in a safer part of the country. But hes so terrified he doesnt want to be on camera and he doesnt want us to say what part of the country hes living in. There was fire here and there. Buildings were on fire . Cars, yes. Reporter he said he had no idea the students were under attack. It wasnt until morning that the teachers saw all the bodies. We were crying. We cried. So the teachers were all crying . Yes. Some of them would be lawyers. Reporter since that attack last month, close to 100 schools shut down in the northeast. This war is having a devastating impact. Most people are far too terrified to speak about what theyre going through. A court in egypt has handed down death sentences to 529 supporters of the ousted president Mohamed Morsi in one of the largest mass trials in recent years. They were convicted of charges, including murdering a policeman and attacking police. Security forces in cairo broke up two cams. They have no chance to present their case. Our correspondent is in cairo. Whats the reaction been to these sentences, ola . One is described as a black mark against the judiciary. We had a reaction for the Muslim Brotherhood who said it was the verdict of a kangaroo court. They said they believe this case will be subject to a retrial. Now, it was the killing of one Police Officer and has resulted in death sentences handed down to 529 defendants. The verdict was announced today at what was the second session of this trial. It began only on saturday. He was unhappy at lawyers discussing politics in court. Those representing the victims are the defendants in this case. They say they have been denied due process. We certainly expect there will be an appeal in this case. Ow 100 of them are in custody at the moment, arent they . We believe 150 are in custody at the moment, according to media reports. The others are on bail or on the run. There is another stage to this process quite apart from the issue of appeals. There are some here who are saying he could guide to stall. That will allow for a retrial to take place. Campaigners are pointing out while death sentences are regularly handed down very few have been carried out. But nonetheless there is also very shocked reaction among many here on the scale of this trial and a number of people who have been sentenced to death and the speed at which the whole thing took place. Just two hearings in a case where 529 lines are at stake. Orla, thank you. Maryam is here with the business. The chinese president to europe. Everyone thinking trade, i suppose. They are hoping and thinking. The president has arrived in europe to start his longawaited diplomatic tour of the region. Hes currently in the netherlands. He will visit belgium, france and germany in hope of signing a series of trade details. And airbus jets will be placed by the chinese government. As sanctions ratchet up in russia, how worried should businesses trading there be . In recent years, russia has been seen as an increasingly exciting place to trade. The impact could hurt european businesses far more than russian ones. Banks will have to comply with u. S. Sanctions. Well have more throughout the day here on bbc world news. In london, the market down 21 points. The dax and cac are all down. Why . Disappointing manufacturing figures from china. Thats relayed worries about 2014 being a year where demand may start falling from the worlds second biggest economy. We had better than expected french economic figures and german ones. But they werent enough to lift market spirits at a busy week if terms of economic data. Asia markets different altogether. Back to you, geeta. Stay with us here. The 70s anniversary of the great escape. The 76 allied officers who tunnelled their way out of a nazi prisoner of war camp. This is bbc world news. Im geeta gurumurthy with the latest headlines. Within the last hour, the malaysian government has said australian search planes found two new objects in the vast search area in the indian ocean for missing flight mh370. It is hoped the objects, one circular and one rectangular, will be retrieved in the coming hours. 500 supporters of Mohamed Morsi have been sentenced to death for attacking police. They say it wasnt a fair trial. Coming up in sport today in half an hour, mantle cal messi. His hat trick inspires barcelona to a classico victory for real madrid missing out on become the number one golfer heading into the masters. Six weeks after breaking his leg, he opens the 2014 motogp season with victory. Thats all coming up in 30 minutess time. Routers news agency reported that the russian Prime Minister mr. Medvedev said International Negotiations are now needed to solve crimeas energy and water provision. Lets go to the capital simferopol. Theres no indication they are preparing to deliberately cut off energy and Water Supplies to crimea. If they were to do that they would be accused of deserting their citizens. But i think that what the line would be is to try to suggest that is what kiev is preparing. I think it fits into this war where moscow is accusing kiev of having alternative motives, of threatening the population here in crimea. Where kiev says its doing nothing of the sort and this is all propaganda from moscow. We had some power out in parts of crimea. No indication this is a concerted effort by the Ukrainian Government to cut crimea off. We have heard in the last hour, ukraine is withdrawing troops from crimea. Sorry. That is very significant indeed. It is tantamount to a military surrender although they would never use that word. It sees the operation as illegal and unconstitutional. It is still an in telling ral part of ukraine. What it is is a tacit recognition that ukrainians have been overwhelmed here on the ground in crimea and that as the president says for their safety they have to now withdraw. That means basically pretty much game over for the ukrainians in terms of their hold on crimea. The last remaining bases will be taken. And the troops go to mainland ukraine. Russia will complete its control of crimea. Frankly they would never be allowed i would have thought back in crimea unless they were to formally accept to join the russian army. Mark lowen in simferopol, thanks very much indeed. The Oscar Pistorius murder trial ended its fourth week in pretoria. The former paraolympic is on trial for murdering his girlfriend Reeva Steenkamp a year ago. The trial is said to run into the middle of may. Riot Police Clashed with student demonstrators. Several handled broke into the Government Central headquarters. Its not far from parliament buildings. Now, as we have been reporting, there have been further sightings of what could be debris from the missing malaysian airliner in the southern indian ocean. Tony abbott said a navy ship may be able to retrieve these items within the next few hours. Lets hear from him now. I wish to update the house with the latest developments in the search for illfated flight mh370. The Australian Maritime Safety Authority has advised that objects have been located by a Royal Australian air force p3 orion. I cant advise the house that success is on scene and is attempting to locate and recover these objects. The objects were spotted in the search area about 2,500 kilometers southwest of perth at 2 45 p. M. Our time. The crew on board the orion reported seeing two objects. The first a gray or green circular object and the second an orange rectangular object. These are separate to the objects reported earlier today by a chinese search aircraft. A u. S. Navy poseidon, a second Royal Australian air force orion and japanese orion are also en route to or in the search area. Planes and ships continue to search the area for any sign of the missing aircraft. I caution again, mr. Acting deputy speaker, that we dont know whether any of these objects are from mh370. Nevertheless, we are hopeful we can recover these objects soon and they will take us a step closer to resolving this tragic mystery. This is an extraordinary mystery, absolutely baffling mystery. But as ive said mr. , mr. Acting deputy speaker, let me reiterate to this house we owe it to the families of those on board. We owe it to the loved ones of those on board. We owe it to all the people concerned about this aircraft to do what we reasonably can to find anything that is out there to test it and to see what we can learn about whatsoever is one of the great mysteries of our time. Tony abbott speaking to parliament in australia on the latest on that search. They have seen objects that hopefully will be retrieved by tomorrow morning. Justify before we go, we are going to leave you with these pictures. Many of us know the story of the great escape thanks to hollywood because allied officers tunnelled their way out of a high security nazi prisoner of war camp in poland. Today marks the anniversary of that escape. 76 servicemen crawled through that tunnel code named harry. Bbc world news. Our afib puts you at 5 times greater risk of a stroke. Thats why i take my warfarin every day. But it looks like maybe we should ask your doctor about pradaxa. In a clinical trial, pradaxa® Dabigatran Etexilate mesylate . Was proven superior to warfarin at reducing the risk of stroke. And unlike warfarin, with no regular blood tests or dietary restrictions. Hey thanks for calling my doctor. Sure. Pradaxa is not for people with artificial heart valves. Dont stop taking pradaxa without talking to your doctor. Stopping increases your risk of stroke. Ask your doctor if you need to stop pradaxa before surgery or a medical or dental procedure. Pradaxa can cause serious, sometimes fatal, bleeding. Dont take pradaxa if you have abnormal bleeding or have had a heart valve replaced. Seek immediate medical care for unexpected signs of bleeding, like unusual bruising. Pradaxa may increase your bleeding risk if youre 75 or older, have a bleeding condition or stomach ulcer, take aspirin, nsaids, or blood thinners. Or if you have kidney problems, especially if you take certain medicines. Tell your doctors about all medicines you take. Pradaxa side effects include indigestion, stomach pain, upset, or burning. 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It imports and exports worth well over a france and germany, chinese l