Carrying explosives and food, 1800 commando troops have set off for the top of Tangjiashan dammed lake on foot, rescue headquarters sources said.

• 唐家山堰塞湖抢险指挥部的消息称，1800人组成的突击队携带炸药、干粮等正赶赴唐家山堰塞湖堰顶，执行排险任务。