At least 12 British nationals are unaccounted for among hundreds of missing foreign tourists after severe flash floods swept through villages along the Nepal-Tibet border.

Police confirmed that the bodies of at least 22 victims have been recovered following the disaster.

Dramatic footage captured a torrent of water breaking riverbanks, destroying bridges, houses and infrastructure across communities situated beside the Bhotekoshi River.

Here is a look at what caused the calamity, and where things stand now.

What happened?

Torrential floods swallowed roads, bridges, houses, ⁠and power projects in the border areas of Nepal, and triggered a mudslide that hit Gyirong Port, a major land crossing with neighbouring Tibet, cutting roads, communications, and power links to the area.

Dozens of people have also been injured.

What caused the calamity?

It is sus...