An explosion killed five students at a madrasa near the Pakistani city of Quetta on Friday, police said. Television footage showed a gaping hole in the rough mud wall around the school and one partly demolished adjacent room. “The madrasa people say that someone threw explosives into the madrasa, but we are investigating,” police official Wazir Khan Nasir told Reuters. However, another police official said the blast took place inside a room of the madrasa and its walls had fallen outwardly, suggesting there could be some explosives inside the room. “We are looking into all possibilities including the one that whether they were preparing some explosives.” Eleven students were wounded in the blast, police said.