Part of a Himalayan Dam glacier has fallen into a rivers leaving least 180 people are missing and 19 dead in northern India.

The critical situation has sent a devastating avalanche of water, dust and rocks down a mountain gorge, and crashing though a dam.

So far, survivors have been trapped under the debris, as rescue teams have worked through the night.

Workers who were hit by the avalanche were mostly missing workers from two hydroelectric projects in Uttarakhand’s Chamoli district.

Apart from human beings who were victims of the incident, buildings trees and people, have also been wiped out.

In confirmation of this development, there are footages from Sunday’s disaster, which shows a fast-moving wall of water and rocks barreling down a narrow gorge and smashing through a dam at the smaller hydroelectric project before surging downstream.

Some 2,500 people in 13 villages were cut off by the ensuing flash floods, Ashok Kumar, senior official with the Uttarakhand police said Monday.