Flooding from heavy monsoon rains has killed at least 27 people and displaced hundreds of thousands in northeast India.

Authorities say about 2,000 villages have been inundated with water in the state of Assam, which has been hit by several days of heavy rains followed by landslides and flash floods.

Displaced villagers are taking shelter on higher ground and in tents as the water level rises on many of the region's major rivers.

Officials say supplies are running dangerously low in some areas, with rescuers forced to drop food packages to some villagers who are stranded on pockets of dry land.

Landslides and floods have also killed at least 110 people in neighboring Bangladesh in recent days.