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A glacier collapse on the Nepal–Tibet border kills more than 600 — nearly 2,500 missing in Nepal, and the Tibetan dead cannot be independently counted

Part of a glacier collapsed high in the Himalayas on the morning of Wednesday 26 August, sending a wall of water, rock and mud down the rivers of the Nepal–Tibet border region and killing hundreds of people in what is the deadliest disaster on this board. The counts on both sides of the border are still moving, both are published in more than one form, and this week both moved upward; we carry each figure with its owner and its hour rather than choosing. THE DEAD, AND A TOLL THAT MORE THAN DOUBLED ON ONE SIDE OF THE BORDER. In Nepal, at least 675 people have died — a figure attributed by the BBC's live page to the country's disaster response agency and by the same newsroom's filed article to Nepali police, one number credited to two bodies on one day. That 675 is the fifth published Nepalese figure in three days, after more than 600 on the disaster authority's count, at least 616 on the police's, at least 626 on an index line attributed to 'authorities', and 673 bodies recovered by Saturday afternoon. IN TIBET THE OFFICIAL TOLL HAS RISEN FROM SEVEN TO SIXTEEN, with 546 now reported missing against 554, per Chinese state broadcaster CCTV as of 6pm local time on Saturday, in Gyirong county, Shigatse city; officials at a news conference there said the mudslide had caused significant casualties at the Gyirong border port. Nine more dead against eight fewer missing is one more death than the missing list released, and nobody explains the difference. Our own source says of the Tibetan figures, in terms, that they 'have not been independently verified' — sixteen is no more checkable than seven was. HOW MANY ARE MISSING, AND WHY WE STILL REFUSE THE TOTAL. Nepal's disaster agency now gives at least 2,498 still missing, above the at-least-2,426 it gave earlier, above Al Jazeera's 2,496 and above the 'more than 2,400' the BBC's live page still runs in its own summary. Tibet's is 546. We do not add them, because our own source instructs us not to — and because that instruction now has a worked example. CCTV reports fifteen British nationals among the missing in Tibet; Nepal's police report 33 British nationals missing; several of those are thought to have been crossing the border, and the BBC states plainly that it is unclear how many of the fifteen sit inside the 33. One nationality, two states, an unknown overlap. THE FOREIGN NATIONALS, WHERE ONE NUMBER NOW MEANS THREE THINGS. Nepal's tourism board gives 261 foreign nationals RESCUED and 320 unaccounted for, in a nationality breakdown — Belgium 1, Bulgaria 1, China 40, Germany 4, India 167, Italy 2, Malta 4, Oman 1, Portugal 1, Russia 2, Spain 2, Switzerland 2, Turkey 2, Ukraine 8, United States 3 and 21 unidentified — that adds to exactly 261, the only published sum in this story that reconciles against its own stated total. CCTV now says 261 of the Tibetan MISSING are foreigners from 23 countries, and publishes a breakdown of fifteen Britons plus 245 others across twenty-one further nationalities, which comes to 260 people across 22 countries — one person from one unnamed country short of its own total, an addition this desk did rather than relayed. And the BBC's filed article, rewritten overnight, has replaced 'a list of more than 517 foreign nationals who have been out of contact' with 'a list of more than 261 foreign nationals who have been out of contact', while its own country list beneath — India at least 320, China nearly 100, the United States 90, Ukraine 62, Malaysia 51, Australia 41, the United Kingdom 33, Canada 30 — is unchanged and still comes to AT LEAST 727 by our own addition. So one page says more than 261 are out of contact and then names 727 of them, a gap of at least 466. We print the change, the collision and the gap, and we diagnose none of them. One further coincidence we flag rather than let a reader trip over: India claims at least 320 nationals missing while the tourism board gives 320 foreign nationals unaccounted for in total, two claims sharing a number and unable to describe the same people, since 167 Indians are on the rescued list. WHAT HAPPENED. Initial reports of an earthquake led many to believe a tremor had caused a landslide. The United States Geological Survey later concluded otherwise: the disaster was a glacial collapse, and the seismic signal came from the landslide itself, registering a magnitude of 5.2. Al Jazeera places the collapse at roughly 5,200 metres, with the mass plunging about 1,200 metres into the Lende River; the surge swept south through Nepal's Rasuwa, Nuwakot and Dhading districts, at one point raising the Trishuli River by nine metres in thirty minutes. The BBC puts the water and debris travelling some 100km downstream from the Trishuli and Bhote Koshi rivers, through towns popular with mountaineering tourists and pilgrims, enveloping the Rasuwagadhi border checkpoint and hitting Gyirong Port over the border. BBC Verify has now authenticated two drone videos, posted to the Chinese platform Xiaohongshu, capturing the landslide near the Langtang Lirung peak more than 7,200 metres above sea level — the same site a University of Dundee team had said it believed was the source, now with footage attached. The sequence is still contested: Mike Searle, professor of Earth sciences at Oxford University, told the BBC the glacier could have collapsed 'hours or days' before the flooding hit, and that 'the sheer wave of debris suggests there was a landslide first, the water built up, [which] dammed the river, and then it burst in one huge great flood.' WHAT IS GONE, NAMED FOR THE FIRST TIME. BBC Verify's reading of satellite imagery from the intelligence firm Vantor and from Planet Labs puts the border crossing 'almost entirely washed away', with damage and mud more than 2.5km upstream reaching 100 metres above the area the flood first hit. The village of TIMURE 'has now largely disappeared', its houses on a slope up to 50 metres above the water line gone or covered in mud. SYAPRU BESI, ten kilometres downstream, is covered by mud, rock and debris, with houses, bridges and a hydroelectric power station disappeared. At TRISHULI, about 45km downstream, an entire neighbourhood has been essentially washed away. At the collapse site, trees and vegetation have been stripped more than 300 metres above the riverbed. The imagery, published under Vantor's Open Data Program, is described by the newsroom reading it as an initial glimpse. THE LAKE, AND THE FIRST PERSON WITH NO STAKE TO READ IT. A lake formed behind the debris at the confluence of the Chhochen Khola and Purepu Tsangpo rivers, holding an estimated 2.5 million cubic metres as of Friday per CCTV; China warned of a 'high risk' it may burst, rescue was briefly suspended on Friday when it overflowed, and Alton Byers of the University of Colorado Boulder told Al Jazeera the barrier is loose debris with 'not much holding it', the safest outcome being gradual natural drainage. Chinese officials say levels are now receding. Dr ARGHA BANERJEE, a glaciologist at the Indian Institute of Science Education and Research, has now told BBC Verify that it is NOT POSSIBLE to determine from satellite images how stable the barrier is or how likely the lake is to drain suddenly — but that its surface area did not significantly increase between Wednesday and Thursday despite water continuing to flow in, that a visible drainage channel suggests water is already escaping downstream, and that its volume is 'not alarmingly large' and appears to have stabilised. Separately, Nepal's disaster authority says it has received reports of a flood level increase near the Bhote Koshi River and has told people to stay alert, and the country's meteorological department has issued yellow rain warnings until at least Monday. THE TUNNELS, WHERE NOTHING HAS MOVED. Specialist teams from China and India have joined Nepalese rescuers at the hydroelectric sites; energy minister Biraj Bhakta Shrestha says rescuers have drilled into a cable tunnel at Trishuli-3 'A' and found no debris inside but have established no communication with anyone in it, with work continuing at Trishuli-3 'B' and the risk that rising water from continuous rain suspends both. Nobody has said how many people are believed to be underground. THE RESPONSE, AND THE HALF NOBODY CAN SEE. Nepal, which initially declined outside assistance, asked India and China for specialist help including tunnel rescue because lives are at stake. Foreign Minister Shisir Khanal said on Saturday that more than 4,450 people have been rescued; more than 18,700 rescuers are deployed. Aid has come from India, the UN, the Red Cross Federation, Australia, South Korea and the United States; the US has pledged $3.6m including up to three months of emergency food assistance to 10,000 households, against the $500,000 its filed sources still carry, with nothing saying whether that replaces or adds to it; the UK has offered £5m; the Indian Air Force says cargo planes carrying nearly 50 tonnes of supplies have been sent. Premier Li Qiang visited Gyirong on Thursday and President Xi Jinping chaired an emergency meeting of officials. But almost nothing of what happened to people in Tibet is visible. Per the BBC's China correspondent Laura Bicker, reporting from Beijing: the CCTV footage of the torrent tearing through Gyirong Port has been shown in China as a single still frame, the video is hard to find on the censored internet, and posts describing the flooding are just as hard to find. There are no survivor accounts from Tibet, almost no user-generated footage, and no word from families of the missing; foreign journalists cannot travel there without permission. A notice from a local party office instructed members to 'make every effort to maintain social order and ensure stability and public confidence in the disaster areas'. The International Campaign for Tibet, while praising first responders, says Beijing has been removing videos and first-hand information from social media, and has called on Chinese authorities to 'disclose complete and verifiable information about the damage and casualties'. Families of the missing are now asking Beijing for the same thing publicly, in their own words, from outside China. AND THE QUESTION OUR OWN SOURCES PUT AND DO NOT ANSWER. Daniel Shugar of the University of Calgary says glacial thinning caused by global warming could increase the risk of landslides, but that it is too early to definitively link this event to climate change. Simon Cook, a geoscientist at the University of Dundee, says climate change 'could have an impact' and that warming permafrost will produce more landslides. We carry both as theirs, and we make no attribution of our own.

Latest — 28–30 August 2026 · Saturday night into Sunday · Gyirong, the Trishuli valley and Kathmandu (walked 29 August, ET)

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