The latest death toll from the devastating flash flood along the Nepal-Tibet border was reported on Saturday to be over 600, as frantic rescue operations to search for hundreds of missing people entered a fourth day.

According to Nepal's disaster agency, the death toll in Nepal now stands at 626, with 2,426 people — including foreigners — still missing.

Across the border in Tibet, China's state news agency, Xinhua, has confirmed seven deaths and reported 554 missing individuals.

A glacial collapse on Wednesday sent rock, ice, mud and debris surging through the Himalayan mountain river systems below.

The flood swept through areas near the Chinese border, ravaging entire towns and damaging hydropower plants.