Four members of a family were found dead at their house at Uzhavathu Kadavu, near Kodungalloor, on Sunday.
They have been identified as Ashiq, 41, son of Ubaidulla; his wife Abeera, 34; their daughters Azara Fatima, 14; and Anoneesa, 8.
It is suspected that they ended their lives by filling their room with some poisonous gas, like carbon monoxide. Presence of carbon monoxide was reportedly detected in the room. The windows, doors and ventilators were sealed with tapes, probably to prevent the poisonous gas from leaking outside. It is reported that the family was under severe financial crisis.