Rescuers search at the scene of an explosion that caused a building to collapse in Chongqing, killing at least 16 people Matthew WALSH, Jing Xuan TENG At least 16 people died when an explosion triggered by a suspected gas leak caused a building to collapse Friday in the Chinese city of Chongqing, state media said. The blast at 12:10 pm (0410 GMT) brought down a neighbourhood committee building housing a canteen, trapping 26 people, the Xinhua news agency said. In the early hours of Saturday, Xinhua put the new death toll at 16, with 10 more injured, one of them…