A catastrophic flash flood struck the mountainous border region between Nepal and Tibet on Wednesday, causing significant loss of life and leaving hundreds missing. The disaster centered on Nepal’s Rasuwa district near the Chinese border, where a sudden surge of water and debris rushed into the river system and swept downstream. Nepalese officials reported that at least 95 bodies had been recovered, while hundreds of residents and tourists remained unaccounted for.
Chinese authorities reported at least three deaths and hundreds missing in Tibet. Early figures from the Nepal Tourism Board listed 384 travelers as missing, including 291 foreign nationals and 93 Nepalis. As more information became available, Nepal’s prime minister’s office raised the number of missing tourists to 484, including 391 foreigners and 93 Nepalis. Those unaccounted for included travelers from India, the United States, and the United Kingdom. The area is a popular route for tourists and Hindu pilgrims heading toward Kailash Manasarovar in Tibet.
The flood appears to have begun roughly 12 miles northeast of the Rasuwagadhi border crossing. Satellite imagery analyzed by Nepal’s National Disaster Risk Reduction and Management Authority indicated that a large collapse of ice and rock triggered a debris-filled surge in the Lhende River. Officials are investigating the precise cause. A magnitude 4.4 earthquake was recorded near the region shortly before the event, prompting questions about whether seismic activity may have contributed to an avalanche or glacier collapse.
The resulting torrent sent a powerful flow of muddy water, rocks, and debris through the mountainous terrain. Footage from the area showed buildings inundated by floodwaters, vehicles swept away, and bridges collapsing. Settlements located close to the river sustained severe damage.
Rescue efforts faced major obstacles. Helicopters were initially unable to land in some of the hardest-hit locations, including Syapru Besi and Timure, due to high water levels and difficult terrain. Destroyed roads, damaged communications networks, and power outages further hindered emergency teams. Nepal requested assistance from neighboring India and China. Across the border, Chinese authorities reported extensive destruction around Gyirong County, where a mudslide struck the border crossing and severed roads, electricity, and communications. Chinese President Xi Jinping ordered intensified search operations and directed officials to remain alert for further hazards.
The flooding also damaged critical energy infrastructure in Nepal, disrupting hundreds of megawatts of hydropower generation. Downstream, authorities in northern India issued flood warnings, and thousands of residents in Bihar were evacuated from vulnerable areas. Rescue crews continued searching on Wednesday as officials cautioned that the casualty figures could rise. With hundreds still unaccounted for and many communities difficult to reach, the full extent of the disaster remained unclear.