Afghanistan flash floods kill more than 300 as torrents of water and mud crash through villages

Survivors pick through debris-littered streets and damaged buildings as rescue workers dispatched amid warning some areas cut off by flooding

More than 300 people were killed in flash floods that ripped through multiple provinces in Afghanistan, the UN's World Food Programme said, as authorities declared a state of emergency and rushed to rescue the injured.

Many people remained missing after heavy rains on Friday sent roaring rivers of water and mud crashing through villages and across agricultural land in several provinces, causing what one aid group described as a major humanitarian emergency".