Why rescuers fear new barrier lake could cause new Nepal-Tibet flood
Rescuers are concerned that a new barrier lake formed in the wake of a deadly flash flood could trigger further disasters in the Nepal-Tibet border region. The initial flood was caused by a mountain glacier collapse, prompting ongoing monitoring of the area.
Why it matters
The formation of unstable barrier lakes poses a significant secondary threat to communities already devastated by recent glacial-related flooding.
The warning comes after Wednesday's deadly flash flood in the same area which scientists say was triggered by the collapse of a mountain glacier into a river.
China correspondent Laura Bicker explains.
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