Workers thought to be stuck in underground areas at 11 sites after last week’s devastating flash floodsRescue teams are working to reach more than 900 missing hydropower workers, hundreds of whom are feared trapped in the tunnels and underground areas of 12 hydropower projects in Nepal after the devastating flash floods, ​the ⁠country’s disaster ​management authority has said.The death toll from the ⁠unprecedented deluge of ice, rock, mud ​and debris on Wednesday last week has rise