𝐅𝐋𝐀𝐒𝐇 𝐅𝐋𝐎𝐎𝐃 𝐃𝐄𝐕𝐀𝐒𝐓𝐀𝐓𝐄𝐒 𝐑𝐀𝐒𝐔𝐖𝐀: 𝐋𝐈𝐕𝐄 𝐔𝐏𝐃𝐀𝐓𝐄𝐒 𝐎𝐍 𝐍𝐄𝐏𝐀𝐋'𝐒 𝐁𝐇𝐎𝐓𝐄𝐊𝐎𝐒𝐇𝐈 𝐃𝐈𝐒𝐀𝐒𝐓𝐄𝐑

August 26, 2026 

Source area: Bhotekoshi River, Rasuwa District 

Status: 🔴 Active - search, rescue, and relief operations ongoing 

Last update  post: ~5:50 PM 

Photo Source: National Media, -Onlinekhabar Nepal - Flood Coverage

What we know right now 

A sudden, violent surge on the Bhotekoshi River, which flows into Nepal from Tibet, tore through Rasuwa district on Wednesday morning and continued downstream through Nuwakot, Dhading, and Chitwan via the Trishuli River before reaching as far as Mugling. It struck without rainfall or warning at around 9:00 AM local time, in what officials describe as one of the worst disasters to hit the Nepal–China border region in years.

As of the early evening, at least 22 people have been confirmed dead, according to The Kathmandu Post, and dozens more remain missing. The figure has climbed steadily through the day as rescue teams reach previously cut-off areas, and it is expected to rise further. Separately, Nepal's Tourism Board has reported that 384 travelers - 291 foreign nationals and 93 Nepalis - could not immediately be accounted for, according to CNN and other outlets, though it remains unclear how much this overlaps with the missing-persons figures being tracked by police and the army.

The Nepal Army says it has rescued more than 88 people so far, with 13 admitted to Tribhuvan University Teaching Hospital in Kathmandu and others treated locally at Trishuli Camp. A dozen helicopters  four military, the rest private have flown dozens of sorties out of Tribhuvan International Airport, though poor weather has repeatedly forced rescue flights to turn back.

A note on the numbers: casualty and missing-person counts are being reported differently by different agencies and outlets this evening - police tallies, army tallies, and tourism board figures have not yet been reconciled into one official count. Treat every number below as provisional.

Live timeline

~5:50 PM - Death toll revised to 22; scale of missing becomes clearer. The Kathmandu Post reports 22 confirmed deaths and lays out the fullest picture yet of who remains unaccounted for: roughly 60 people connected to the Langtang Khola Hydropower Project (25 engineers, drivers, and kitchen staff, plus 35 workers who were inside the project's tunnel when the flood hit), 15 employees of the Rasuwa Customs Office in Timure, and 32 security personnel from Nepal Police and the Armed Police Force. The hydropower project had reportedly just been completed and was due for testing within two days.

~4:13 PM - Nepal government situation report (basis of the original briefing behind this post). Nepal Police put the confirmed toll at 8, with 6 further bodies recovered in Dhading not yet folded into an official total. At least 41 people had been rescued and were receiving treatment, 24 at Rasuwa Hospital, 15 airlifted to Kathmandu. The Cabinet met and decided to provide free treatment to all flood-injured; Foreign Minister Shishir Khanal briefed Parliament in place of the Home Minister, who remained occupied with the response.

Early-mid afternoon - Infrastructure damage assessments come in. The Department of Roads confirmed at least 19 bridges over the Trishuli River damaged and roughly 40 km of road destroyed, including an 18 km stretch between Syaphrubesi and Rasuwagadhi. The Nepal Electricity Authority reported 12 hydropower and solar plants damaged, cutting 431.1 MW from the national grid - including the Rasuwagadhi, Sanjen, Chilime, Langtang, and Upper Trishuli 3A plants. In Timure and Ghattekhola, roughly 107 and 50 homes respectively were destroyed, along with the municipal building, police post, customs office, and dry port.

Late morning - International concern grows. Chinese state media reported "major casualties" on the Tibet side, where the flood also struck the Gyirong border port, a major China–Nepal trade crossing. The U.S. Embassy in Kathmandu said it was saddened by the loss of life and urged American citizens in Rasuwa, Nuwakot, Dhading, Gorkha, Chitwan, and Tanahun to move to higher ground and away from riverbanks.

Mid-morning - Toll climbs as reports arrive from cut-off areas. As communications were gradually restored, reported deaths rose in stages through the day - from single digits, to a Reuters count of roughly 28 bodies laid out at a school near the affected area, to the 22 confirmed by evening. Nepal Police said 32 of their officers and Armed Police Force personnel were unreachable after flood damage to posts in Timure, Syaphrubesi, Rasuwagadhi, and Melung.

~9:00 AM - Flood strikes. The Bhotekoshi rose abruptly and hit the Syaphrubesi and Timure market areas. Rasuwa's Chief District Officer, Narendra Pariyar, said conditions had been dry and sunny beforehand, and that it was not yet clear what had triggered the surge. The Nepal government deployed its first two Army helicopters; Prime Minister Balendra Shah convened an emergency Council of Ministers meeting.

Casualties and the missing, in detail

• Deaths: At least 22 confirmed as of the early evening (Kathmandu Post), up from an earlier police count of 8 plus 6 additional bodies recovered in Dhading. Other outlets reported figures between 17 and 22 through the afternoon as counts were reconciled at different speeds. Expect this number to change again overnight.
• Missing - hydropower workers: Around 60 people linked to the Langtang Khola Hydropower Project remain out of contact - 25 engineers, drivers, and kitchen staff, and 35 workers who were inside the project tunnel.
• Missing - customs staff: 15 employees of the Rasuwa Customs Office in Timure.
• Missing - security personnel: 32 Nepal Police and Armed Police Force personnel, following flood damage to posts in Timure, Syaphrubesi, Rasuwagadhi, and Melung. (An earlier count in Wednesday's government briefing had put this at 32 police plus 9 APF separately - the two figures have not yet been reconciled.)
• Unaccounted travelers: Nepal's Tourism Board says 384 travelers - 291 foreign nationals (including a preliminary list of 105 Indian nationals) and 93 Nepalis - could not be immediately reached.
• Rescued: More than 88 people rescued by the Nepal Army, per army spokesperson Rajaram Basnet; 13 are being treated at Tribhuvan University Teaching Hospital, with others treated locally at Trishuli Camp or moved to safe ground. Earlier in the day, government figures had put the rescue count at roughly 29–41.

---

Infrastructure and economic damage

• Roads and bridges: At least 19 bridges over the Trishuli River and roughly 40 km of road damaged or destroyed, per the Department of Roads. An 18 km stretch between Syaphrubesi and Rasuwagadhi was completely washed away. In Dhading, the Furkekhola bridge and its alternate, the Keurini–Fosretar bridge, were both lost, cutting the district headquarters off from the Prithvi Highway; three motorable bridges over the Trishuli in Dhading were also destroyed.
• Power sector: Twelve hydropower and solar installations were damaged, removing 431.1 MW from the national grid - including Rasuwagadhi (111 MW), the Sanjen group of plants, Chilime (22 MW), Langtang (20 MW), and Upper Trishuli 3A (60 MW), among others. National transmission infrastructure was also affected.
• Settlements: Roughly 107 homes in Timure and 50 in Ghattekhola market were completely destroyed, along with the municipal building, police post, customs office, and dry port at Rasuwagadhi.
• Border trade: The flood also struck Gyirong port on the Tibet side, a major node in China–Nepal cross-border trade, which reportedly handles hundreds of millions of dollars in annual commerce.

---

What triggered the flood?

The exact cause has not been officially confirmed, and accounts differ. Rasuwa's Chief District Officer said the area had been dry with no rainfall before the flood hit, ruling out a simple cloudburst. A Tribhuvan University geology professor said damage of this scale would be unusual without a glacial lake outburst flood (GLOF). Later reporting citing scientists at the International Centre for Integrated Mountain Development (ICIMOD) points to a more specific mechanism: an ice-rock avalanche on the Nepal side that is thought to have temporarily blocked the Lhende Khola, a Bhotekoshi tributary, before a sudden, catastrophic release sent the surge downstream. Separately, Nepal's Foreign Minister told Parliament that preliminary information pointed to a small earthquake around 8:37 AM as a possible trigger for an ice avalanche. Chinese authorities and Nepal's Department of Hydrology and Meteorology are reportedly reviewing satellite data to pin down what happened upstream.

Rasuwa has been hit before: a flash flood from the same river system in July 2025, also blamed on a glacial-lake-related event in Tibet, killed at least nine people and swept away the Nepal–China Friendship (Miteri) Bridge.

---

The government and rescue response

• The Cabinet has approved free treatment for all flood-injured, to be coordinated through the Ministry of Health and Food Hygiene, the Nepal Army, and government hospitals.
• Bir Hospital, Tribhuvan University Teaching Hospital, the National Trauma Center, and APF Hospital Balambu have all activated emergency protocols, with roughly 100 beds reserved between Bir Hospital and the Trauma Center and field medical teams deployed.
• The Armed Police Force has mobilized about 1,100 personnel, including rescue teams, medics, a canine unit, and a drone unit.
• The World Health Organization is sending basic medicines and health equipment for 1,000 people, plus 15 emergency tents.
• The government has waived the special flight-permission requirement for private helicopters supporting rescue efforts, and 29 private plus 6 military helicopter flights had been flown out of Tribhuvan International Airport by the evening, though repeated bad-weather turnbacks have slowed the operation.
• President Ram Chandra Paudel has publicly appealed for intensified rescue and relief coordination. Prime Minister Balendra Shah has remained in continuous disaster-coordination meetings, postponing a scheduled parliamentary session as a result. Home Minister Sudan Gurung and Tourism and Civil Aviation Minister Khadak Raj Paudel have been coordinating rescue flights from the airport.
• The National Disaster Risk Reduction and Management Authority says risk remains high, because the point upstream where the river was reportedly blocked has not fully cleared, and continues to urge downstream residents to stay away from riverbanks.

---

What's still unclear

• A single, reconciled death toll. Police, army, and tourism-board figures are all moving independently and have not yet been merged into one official number.
• The fate of those still out of contact - roughly 60 hydropower workers, 15 customs staff, 32 security personnel, and hundreds of travelers whose status is unknown.
• The precise trigger - GLOF, ice-rock avalanche, a possible earthquake, or some combination - is still under investigation by Nepali and Chinese scientists.
• The full economic toll, including hydropower and infrastructure losses, has not yet been calculated.

Photo Source: National Media, Nepal - Flood Coverage 

This is a developing story. Figures in this post reflect the most recent verified reporting available at the time of writing and are likely to change as rescue operations continue and communications are restored to cut-off areas.

Sources

• Nepal government/security situation briefing, 10 Bhadra 2082 (Onlinekhabar, Ratopati, NDRRMA, Nepal Police)
• The Kathmandu Post - "UPDATE: Rasuwa flood death toll climbs to 22 as dozens remain missing" and "Bhotekoshi flood: What we know, what remains unclear"
• CNN -"Nepal flooding: Hundreds missing and many feared dead after flood hits Nepal-China border"
• Al Jazeera - "Avalanche floods kill eight, hundreds missing in Nepal's Himalayas"
• ANI / The Tribune - "Flash flood sweeps market and residential areas of Rasuwa district of Nepal bordering China"
• Wikipedia -"2026 Nepal floods"