Seven persons have succumbed to the burn injuries after leakage of gas from an LPG cylinder triggered fire and explosion inside a room on the outskirts of Gujarat's Ahmedabad city, police have said.

The incident took place on Tuesday night (July 20), but the victims - labourers and their family members - died over the last couple of days during treatment, said S S Gameti, sub-inspector of Aslali police station in Ahmedabad rural on Friday.