At least 633 people have been killed in devastating flash floods and landslides across Nepal and China, with nearly 3,000 still missing as major rescue operations continue.

At least 403 people, including 47 from the United States, were reported missing, officials in Nepal said.

UDIN DHUNGA, Nepal (AP) — Flash floods in a border area of Nepal and China have killed at least 75 people and left hundreds missing. On Wednesday, officials in Nepal reported 403…

The deadly flash flood may have been caused by an avalanche from an icy glacier on Nepal's side of the border.