A flash flood swept part of the Nepal-Tibet border on 26 August 2026, killing dozens and leaving hundreds missing, according to multiple outlets. Officials warned the toll could rise further.
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Key facts
- The flood struck Rasuwa, an area north of Kathmandu bordering Tibet.
- Death tolls reported through the day rose, with CNBC citing at least 98 killed.
- Nepali officials reported at least 403 people missing, including 47 from the United States.
- Tibet reported 'major casualties' with people missing in the neighbouring county of Gyirong.
- Villages, roads and energy facilities were damaged, and authorities said casualties could be much higher.
A flash flood swept part of the Nepal-Tibet border on 26 August 2026, killing dozens of people and leaving hundreds unaccounted for, according to multiple news outlets. The disaster hit Rasuwa, an area north of the Nepali capital Kathmandu that borders Tibet, and is feared to have swept away villages, the BBC reported.
Casualty figures rose sharply through the day as reports came in. The BBC initially reported at least 17 dead, later citing seventeen dead and hundreds unaccounted for. Al Jazeera carried figures ranging from at least eight to at least 22 and more than 90 killed. By the afternoon, CNBC reported at least 98 killed and hundreds missing across Nepal and China.
Nepali officials said at least 403 people were reported missing, including 47 from the United States, according to CNBC. Authorities cautioned that casualties could be much higher, alongside heavier losses of property, Al Jazeera reported.
The impact extended across the border into Tibet, where authorities reported ‘major casualties’ with people missing in the neighbouring county of Gyirong, according to Al Jazeera. The scale of the losses on the Chinese side was not fully detailed in early reporting.
Beyond the human toll, the flood damaged roads and energy facilities, Al Jazeera said, disrupting infrastructure in the affected region. The full extent of the destruction remained unclear as rescue and recovery efforts continued.
The differing death tolls reflected the fast-changing nature of the disaster, with figures updated repeatedly through the day as officials assessed the damage across a remote and mountainous stretch of the frontier.
Why it matters
Flash floods in mountainous border regions can devastate communities quickly and hamper rescue efforts because of remote terrain and damaged infrastructure. The cross-border impact and the reported presence of missing foreign nationals underline the wider consequences of such disasters.
Frequently asked questions
Where did the flash flood happen?
The flood struck Rasuwa, an area north of Kathmandu that borders Tibet, and also affected the neighbouring Tibetan county of Gyirong, according to the BBC and Al Jazeera.
How many people were killed or missing?
Reported death tolls rose through the day, with CNBC citing at least 98 killed. Nepali officials said at least 403 people were missing, including 47 from the United States.
What damage did the flood cause?
According to Al Jazeera, the flood damaged roads and energy facilities and is feared to have swept away villages, with authorities warning casualties and property losses could be much higher.
Timeline
- Nearly 1,400 missing, mostly tourists, after Nepal-Tibet flash flood kills at least 356
The Guardian World: Entire villages swept away after glacial collapse triggers flood in mountainous region popular with trekkers and pilgrims Nepal-Tibet flash flood – latest updates Have you been affected by the flash floods? Rescuers are searching for nearly 1,400 people, most of them tourists, wh
- Nepal flash flood: more than 350 killed amid warning of fresh danger – latest updates
The Guardian World: Authorities say water rising at lake at site of disaster and it could burst Nearly 1,400 missing, mostly tourists, and hundreds killed Visual guide: how the deadly flooding unfolded Tell us: have you been affected by the flash floods? Eyewitness accounts have been emerging from t
- Nearly 1,400 missing, mostly tourists, after Nepal-Tibet flash flood kills at least 270
The Guardian World: Entire villages swept away after glacial collapse triggers flood in mountainous region popular with trekkers and pilgrims Nepal-Tibet flash flood – latest updates What we know so far Have you been affected by the flash floods? Rescuers are searching for nearly 1,400 people, most
- Search on for at least 33 Britons missing after flash floods in Nepal and Tibet
The Guardian World: Rescue teams are searching for nearly 1,500 missing people, mostly tourists, after floods kill at least 165 Nepal-Tibet flash flood – latest updates Rescue teams in Nepal are searching for at least 33 British nationals who are among those missing after flash floods ravaged its bo
- Nepal flash flood: more than 1,500 missing, mostly tourists, after disaster kills at least 165 at Tibet border
The Guardian World: Entire populated areas swept away after glacial collapse causes catastrophic flood in mountainous region popular with trekkers and pilgrims Nepal-Tibet flash flood – latest updates What we know so far Have you been affected by the flash floods? Nearly 1,500 people are missing, th
- Nearly 1,500 missing, mostly tourists, after Nepal-Tibet flash flood kills at least 165
The Guardian World: Entire villages swept away after glacial collapse triggers flood in mountainous region popular with trekkers and pilgrims Nepal-Tibet flash flood – latest updates What we know so far Have you been affected by the flash floods? Nearly 1,500 people are missing, the majority of them
- Nepal flash flood: more than 1,000 missing, mostly tourists, after disaster kills at least 165 at Tibet border
The Guardian World: Entire populated areas swept away after glacial collapse causes catastrophic flood in mountainous region popular with trekkers and pilgrims Follow latest updates live Nepal-Tibet flash flood: what we know so far Tell us: have you been affected by the flash floods? More than 1,000
- Nepal flash flood live updates: more than 1,000 people missing after glacial collapse at Tibet border
The Guardian World: At least 165 people have died, while officials say hundreds of foreign nationals from India, the US, UK, Australia, Malaysia and Ukraine among those missing. Follow the latest news Flash floods on Nepal-Tibet border leave scores dead and hundreds missing Tell us: have you been af
- At least 98 killed and hundreds missing after flash floods in Nepal and China
CNBC Top News: At least 403 people, including 47 from the United States, were reported missing, officials in Nepal said.
- At least 95 killed and hundreds missing after flash floods in Nepal and China
CNBC Top News: At least 403 people, including 47 from the United States, were reported missing, officials in Nepal said.
- Video shows scale of flash flood hitting Nepal-Tibet border
BBC World: This video has been edited by the BBC with white flashes, due to the distressing content.
- At least 75 killed and hundreds missing after flash floods in Nepal and China
NPR News: The disaster is linked to climate change, with experts noting the region's vulnerability to extreme weather.
- At least 98 killed and hundreds missing after flash floods in Nepal and China
NPR News: The disaster is linked to climate change, with experts noting the region's vulnerability to extreme weather.
- Seventeen dead and hundreds unaccounted for as flash flood hits Nepal-Tibet border
BBC World: The flood in Rasuwa – an area north of Kathmandu bordering Tibet – is feared to have swept away villages.
- At least eight killed as Nepal flash flood damages roads, energy facilities
Al Jazeera: Authorities say casualties could be much higher, alongside heavier losses of property.
- At least eight killed, hundreds missing after Nepal flash flood
Al Jazeera: Across the border, Tibet reported "major casualties" with people missing in the neighbouring county of Gyirong.
- At least 22 killed, hundreds missing after Nepal flash flood
Al Jazeera: Across the border, Tibet reported 'major casualties' with people missing in the neighbouring county of Gyirong.
- More than 90 killed, hundreds missing after Nepal flash flood
Al Jazeera: Across the border, Tibet reported 'major casualties' with people missing in the neighbouring county of Gyirong.
- At least 17 killed as flash flood sweeps part of Nepal-Tibet border
BBC World: The flood in Rasuwa – an area north of Kathmandu bordering Tibet – is feared to have swept away villages.