New Delhi, April 15 -- At least four people died and 18 others were injured in a powerful explosion in the Sri Sathyasai district of Andhra Pradesh on Wednesday, a police official said. The explosion demolished at least two houses.

Earlier, Sri Sathyasai district superintendent of police S Satish said the explosion occurred around 12.30 pm.

"Until now, four people died, and 18 others were injured, including one in a serious condition," the official told PTI.

He said workers from Telangana were living in that house where the explosion occurred.

Though the explosion was being attributed to a gas cylinder blast, it may not be limited to a gas cylinder, given the intensity of the blast, the official swas quoted by PTI as saying.

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