Search and rescue operations are underway in Uttarakhand, a state in northern India, in a race to rescue 197 people who are still missing after a major flood caused by a glacial avalanche that left at least 27 dead on Sunday.
A piece of a Himalayan glacier broke and fell into the Dhauliganga River, causing floods and falling rocks that opened a dam and sent a flood of water down the valley, according to the BBC.
Videos of the scene show the glacier leaving clouds of debris and flattening the earth in its wake.
News18 reported Monday night that 27 bodies were recovered and 197 were still missing, after previous reports listed 26 deaths and 150 missing.
Most of the disappeared are believed to be workers at two hydroelectric projects in the surrounding area that were hit by the avalanche.
The Uttarkhand police chief told CNN on Monday that among the missing are 35 workers believed to be trapped in a tunnel more than 600 feet long in a state hydroelectric project.
The workers have made no contact since Sunday. Authorities said it is difficult to deduce whether all workers are still together and where specifically in the tunnel they may be located, the agency said.
India’s NDTV broadcaster reported that the entrance to the 12-foot-high, 15-foot-wide tunnel was blocked with debris and mud. Rescuers are currently focused on cleaning up the debris from the tunnel opening.
On Monday, rescue workers reached all 13 villages initially isolated by the floods, according to CNN, while relief work continues in the region.
Below, the images show the devastation caused by the glacial avalanche.
Massive flooding from the glacial breach led to officials evacuating dozens of villages in the region.
Most of the missing are believed to be workers at two hydropower projects in the region.
The Dhauliganga hydropower project suffered significant damage.
Rescuers are using heavy machinery to try and clear the entrance of a tunnel in which 35 people are believed to be trapped.
Rescuers have reportedly recovered 27 bodies.
More than 2,000 members of the military, paramilitary groups, and police have taken part in search and rescue operations.
People have gathered throughout the country to mourn.