The nine missing Koreans may be trapped in one of the numerous tunnels at hydroelectric construction sites in Nepal

South Korean government and corporate response teams are struggling to reach a hydropower plant construction site in Nepal where nine South Koreans remain unacc

Rescue teams say destruction from flash flood has made it difficult to even locate entry points of tunnel

Rescue efforts intensify for hundreds of workers missing in Nepal's flood-hit hydropower projects. Mud and debris are blocking tunnel entrances, hindering access for rescue…