CALCUTTA. June 5: A three-story building collapsed after a truck parked outside exploded in a northern Calcutta suburb Tuesday killing at least five people and injuring 30 others, an official said, reports AP

A fire engulfed the Barana-gar area as inflammable sulphur stored on the ground floor of the building burned, said Manish Gutpa. the state home secretary Calcutta is the capital of West Bengal state. The five killed Included one woman and a child Their bodies were charred beyond recognition. Untied News of India news agency said.

No one has claimed responsibility for the explosion.

H P Dey. the owner of the building, and a tenant family lived on the first and second floors of the building. The blast could be heard from a distance of one kilometer (half a mile) local resident* said.

Dey was a dealer in refined sulphur and used the ground floor as a storehouse, police said.