Rescue teams searched for more than 1,300 people missing after floods hit Nepal and Tibet following a glacial collapse on Wednesday.

The death toll in Nepal rose to 165.

Nepalese authorities said 826 people were missing in the districts of Nuwakot and Rasuwa.

Chinese state broadcaster CCTV reported that 260 of the 558 missing in Tibet were foreigners and that two villagers were rescued.

At least three people were killed in Tibet as of Thursday morning, CCTV said.

Army and private helicopters rescued more than 100 people from flood-affected areas on Thursday morning.

Eight foreign nationals were airlifted to Kathmandu, army spokesperson Brigadier General Raja Ram Basnet said.

Bodies were recovered about 100 kilometers downstream in Chitwan district.

Dozens of injured people were taken to Kathmandu for advanced medical care.

In Tibet, a mudslide near Gyirong Port on Wednesday left mud up to two meters deep on some road sections and cut off communications, CCTV reported.

A barrier lake was discovered near the port, complicating rescue efforts, and Chinese authorities deployed a large military transport aircraft to the region, CCTV said.

Officials said hundreds of foreigners were reported missing, including Indians on pilgrimage to Mount Kailash, at least 34 Australians on pilgrimages and tours, and 55 Malaysians in Kathmandu, Malaysia’s Foreign Ministry said.

Australia’s Foreign Minister Penny Wong told reporters that Australian citizens were part of separate pilgrimage and tour groups.

Australia was coordinating with Nepal, the United Nations, the Red Cross and other organizations on a humanitarian response.

The Nepalese government had not requested assistance, she added.

The U.S. Geological Survey said a magnitude 5.2 glacial collapse occurred near the Nepal-China border on Wednesday, not an earthquake, and that debris flowed downstream with significant impact on communities.

Experts at the International Centre for Integrated Mountain Development said an avalanche from a glacier likely caused the flash flood, noting water levels on the Trishuli river rose by up to nine meters in half an hour.

The Lhende Khola river, a tributary of the Bhotekoshi, has flooded twice in 14 months, the most recent triggered by an ice rock avalanche from a glacier on the Nepal side, disaster risk reduction specialist Saswata Sanyal said.

Researchers found that glaciers across the Hindu Kush Himalaya region are melting faster, with ice loss rates doubling since 2000, raising concerns about increased flood risk in a warming climate.

Rescue operations continued as light rain persisted.

Authorities warned that secondary collapses or landslides may occur.