About 100 people missing as flash flood tears through town in northern India

Large-scale search and rescue operation under way after at least four people killed in Himalayan region

A torrent of mud from a flash flood has smashed into a town in India’s Himalayan region, tearing down a mountain valley before demolishing buildings and killing at least four people, with about 100 others missing.

Videos broadcast on Indian media showed a terrifying surge of muddy water sweeping away blocks of flats in the tourist region of Dharali in Uttarakhand state.