At least four workers have died after an avalanche swept away a large construction crew working on a highway near India’s mountainous border with Tibet, Indian army said Saturday. The incident took place near the Mana Pass in northern Uttarakhand state on Friday,

Officials in India say more than 40 construction workers are missing after an avalanche hit their camp in Uttarakhand state.

The ecologically sensitive Himalayan region, which has been severely affected by global warming, is prone to avalanches.