A Subedar Major, a jawan and a local porter were killed after being caught in the landslide when a five-member Army team was returning from routine patrolling of Kedar peak, Uttarkashi SP Rajiv Swarup said.
A Disaster Response Force contingent has been dispatched to the spot to help in rescue operations, he said.
A team from Army's Harsil base camp regularly goes for patrolling of the peak, the SP said.