Hundreds dead as over 2,000 remain missing in massive Nepal-Tibet flood

The wall of water that descended caused destruction at least 62 miles downriver.

LONDON -- The death toll continues to climb two days after massive flash flooding obliterated parts of the Nepal-Tibet border region on Wednesday, with at least 469 bodies recovered and nearly 1,000 people still missing, authorities said.

As search and rescue efforts continued in Nepal on Friday, authorities said at least 1,545 people had been injured and rescued and that 8,380 police personnel had been deployed to the region, according to the Nepal Police.

At least 977 people remained missing in Nepal, the National Disaster Risk Reduction and Management Authority confirmed.

Across the border in the Chinese region of Tibet, the state-run Xinhua News Agency reported Thursday that three people were confirmed killed and 558 others remained missing, citing local officials.

The number of people considered missing has fluctuated significantly as recovery efforts have accelerated.

The flooding, captured in dramatic video footage, occurred in the northern Rasuwa district along the border with Tibet at around 8:40 a.m. local time Wednesday, authorities said. The flooding inundated areas along the Trishuli River, burying some buildings and damaging bridges and roadways.

The deadly wall of water that descended from the mountains on the border between Nepal and Tibet caused destruction at least 62 miles downriver from the border in Nepal, an ABC News analysis of verified video and satellite images shows.

The flood was reportedly triggered by a landslide about 12 miles northeast of the Rasuwagadhi border post along the Nepal-China frontier, according to Nepal Disaster Management.

A 5.2-magnitude landslide was registered in Nepal on Wednesday, according to the U.S. Geological Survey.

The seismic activity from the landslide was initially erroneously reported as a 4.4-magnitude earthquake, the agency said. It is unclear what triggered the landslide.

A geophysicist at Columbia University in New York told ABC News it appeared a landslide in the Himalayas took away a large glacier, or parts of one, in the mountain pass.

The initial location of the glacier was a cliff about 16,000 feet high. The debris avalanche, or landslide, slid down 6,000 feet on the slope, the USGS said.

While it will take time to determine how severe the landslide was, the USGS estimated that more than 100 million cubic meters of ice, rock and debris were displaced in the event, Ben Mirus, a research geologist with the agency, said Thursday.