Hundreds of students, most of them teenage boys, were inside the two-storey Islamic boarding school in the town of Sidoarjo when it collapsed on Monday. Thirteen people have been freed from the debris since rescue efforts began, though two later died in hospital. On Thursday, the disaster mitigation agency (BNBP) said rescuers using thermal drones failed to detect signs of life from the rubble. He added that the team had decided to move on to the "next phase" of operations - using heavy equipment to move slabs of concrete. Getty Images Anxious relatives had camped out at the school for days as they wait for news of their loved ones