Rescuers descend into Nepal hydro tunnels to reach trapped workers amid flood crisis
Rescuers in Nepal are drilling holes and rappelling into hydroelectric tunnels at several plants, including Upper Trishuli-3A/3B, as part of an urgent effort to locate more than 900 missing workers after catastrophic floods along the Nepal-China border; international teams are assisting with air, food, oxygen, and cameras as rescue operations continue and the death toll rises.