A massive flash flood and mudslide devastated the Himalayan border region of Nepal and China's Tibet on Wednesday, August 26, 2026. The disaster was caused by a glacial collapse and debris flow, not an earthquake as initially reported by the USGS, which resulted in a huge wall of mud and rock collapsing into a river. This triggered catastrophic flooding on the Nepali side, washing away villages, infrastructure, and a significant portion of the Prithvi highway connecting Kathmandu to Pokhara.
As of Thursday, August 27, Nepali police confirmed at least 332 fatalities, with 826 people still missing. The National Disaster Risk Reduction and Management Authority reported 644 missing tourists, including 466 foreigners. China's CCTV stated that 558 people were missing in Tibet's Gyirong county, with 260 foreign nationals among them. The UK Prime Minister offered £5 million in aid, while the US pledged $500,000 for emergency relief, and India offered humanitarian assistance.
Among the missing foreign nationals are 288 Indians, 127 Nepali tourists, 65 Americans, 53 Ukrainians, 51 Malaysians, 35 Australians, 33 British, and 24 Canadians, according to the Nepal Tourism Board and various foreign ministry reports. An official expressed grim prospects, fearing only a "1% chance" of survival for those still missing. Rescuers are utilizing 13 helicopters in an effort to find survivors and recover bodies.