Doosan, KOEN widen drone, helicopter search for 9 missing workers in Nepal

South Korean companies Doosan Enerbility and Korea South-East Power Co. intensified their search Tuesday for nine employees missing since flash floods hit Nepal on Wednesday, deploying drones and helicopters over the site of a hydropower plant under construction. State-run KOEN added four drones equipped with thermal and infrared cameras Tuesday, bringing its total to six, according to the company's on-site response team. The drones are conducting detailed searches of the power plant's base camp