An avalanche buried as many as 139 people Saturday morning, including around 124 Pakistani soldiers and 11 civilians, CNN reported.
A U.S. team worked Monday to help Pakistani soldiers in a search for the victims near a Himalayan military outpost.
The mountain headquarters has never seen such a disaster during its two decades of existence.
The men were in the main building of the outpost when an avalanche buried them in 70 feet of snow, the Los Angeles Times reported.
So far, no bodies have been recovered and there has been no communication with the soldiers trapped under the snow.
The average winter snowfall around the outpost is around 35 feet and temperatures can reach minus 50 degrees.