Authorities in Uttarakhand have sounded an alarm from Chamoli to Haridwar after a glacier broke off following an avalanche on Sunday. The avalanche struck near a power project site at Raini village in Chamoli district. The water level in the Dhauliganga river rose to a dangerous level following the avalanche. Preliminary reports suggest that there has been heavy damage and loss of lives due to the breaking of the Tapovan- Vishnugad dam. Several people have drowned although a clear picture is yet to emerge. Meanwhile, officials said that settlements near the river banks from Chamoli till Rishikesh and Haridwar are being cleared. Teams of the State Disaster Response Force are reaching the area to take stock of the damage.