Hydropower worker tells BBC of the moment the flash flood hit

Earlier, the BBC spoke to workers at the hydropower plant about the moment the flash flood hit. Pemba Dundu Tamang, whose team of about 30 was constructing one tunnel's concrete lining, says it started with a sudden, strong gust of air. The blast sent plywood flying and dislodged heavy machinery. Just outside, houses had already been swept away. "I ran towards the tunnel entrance," Tamang says. "The water was chasing behind me and I was running ahead of it." He says he ran fo