A Greek Coast Guard helicopter flies over a Frontex vessel trying to rescue refugees and migrants, after a boat carrying more than 200 people sunk while crossing part of the Aegean sea from Turkey, near the Greek island of Lesbos, October 28, 2015. At least three migrants drowned and the Greek coastguard rescued 242 others when their wooden boat sank north of the island of Lesbos on Wednesday, authorities said. REUTERS/Giorgos Moutafis