18 people have been killed and over 200 are still missing, after a part of a glacier burst in Uttarakhand's Chamoli district on Sunday, triggering an avalanche and a deluge in the Alaknanda river system that washed away hydroelectric stations and five bridges. The burst glacier also swept away roads and forced authorities to evacuate villages. National and state disaster response teams have been deployed, as have teams from the ITBP. The Army has sent six columns and the Navy seven diving teams.