Rescue teams on both sides of the Nepal-Tibet border were repeatedly forced to reassess and retreat Friday as an unstable barrier lake overflowed into Bhote Koshi, sent a fresh surge downstream and briefly halted operations, only for another avalanche hours later to dump an estimated 50,000 cubic metres of ice debris towards the impounded water. Satellite images later showed an even more worrying development — a second, larger upstream lake was still growing and had no visible outlet.

Fresh flood risks arise downstream of Nepal's Bhote Koshi as a new lake forms, prompting urgent safety measures and monitoring.

Nepal and China are confronting fresh flood dangers from glacial lakes formed after a devastating flood that claimed hundreds of lives. One particular lake in Nepal is…

A fresh barrier lake holding around 2 million cubic metres of water has formed on the Nepal side near the confluence of Chhochen Khola and Purepu Tsangpo rivers close to the…