30-year-old Sonia and her two daughters, Tanveera (8) and Rahie (6), were found dead in the kitchen of their home in Ladgoo village near Damhal-Hanjipora, 80 kms from here, a police spokesman said.
Preliminary investigations revealed that the trio had died of suffocation due to a leak in the cooking gas cylinder, the spokesman said.
Police has started inquest proceedings and investigations, he said, adding that bodies of the deceased were handed over to their relatives for burial after legal formalities.