A 35-year-old woman and her three children were killed on Friday when their house was flattened in a landslide at Kurseong in Darjeeling hills.
The four were in their home on St Mary Hills early morning when it was covered with mud and stone due to the landslide, police said.
The woman’s husband managed to escape, they said adding that the family hailed from Bihar and had come to the town as migrant workers.
In a separate landslide at Kalimpong, National Highway-31A connecting Siliguri with Gangtok was blocked.
Traffic on the highway has reportedly been stranded for nearly ten hours following the landslide.
BRO officials have begun road clearing work near Rambhi.