<p>Up to 700 migrants are feared drowned in a series of shipwrecks off the coast of Libya in the last few days, the UN refugee agency says.</p><p>The boats sank south of Italy on Wednesday, Thursday and Friday as the migrants tried to reach Europe in unseaworthy vessels.</p><p>Spring weather has led to a surge of people attempting the perilous crossing from Africa to Europe.</p><p>Almost 100 migrants are missing from a smugglers' boat which capsized on Wednesday. Horrifying pictures of the incident and its aftermath were filmed by rescuers.About 550 other migrants are missing from a boat which overturned on Thursday morning after leaving the Libyan port of Sabratha on Wednesday. Survivors said the boat had no engine and was being towed by a second smuggling vessel.</p><p>In a third shipwreck on Friday, 135 people were rescued, 45 bodies pulled from the water and an unspecified number of others are missing.</p><p>Meanwhile, the MSF Sea group suggested the death toll from the last week could be as high as 900.<br>Survivors are being taken to the Italian ports of Taranto and Pozzallo.<br><br><br></p>
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