Nepal floods: The remote Nepal-China border crossing at the heart of a Himalayan tragedy - BBC News

More than 100 Indians are missing at a vital Nepal-China trade crossing after devastating Himalayan floods.

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Video shows scale of flash flood hitting Nepal-Tibet border

The video lasts only seconds.

A dark wall appears from behind the buildings at Gyirong, on the Chinese side of the Nepal-Tibet border. At first, it looks almost like a black cloud. Then it gathers shape and speed: water, mud, boulders, ice and rock surging down the valley. The CCTV footage, whose timestamp reads 10:59:53, went viral.

For many, it was the first visual evidence of the sheer scale of the destruction that was unfolding.