India, April 1 -- A blast was reported at Badshahpur police post in Patiala district early on Tuesday, triggering panic amid rumours of a grenade attack.

Police said no trace of any explosive was found in and around the post and no one was injured.

Patiala senior superintendent of police (SSP) Nanak Singh, who reached the post, said, "Around 2am, a blast-like sound was heard. So far, we have not found anything that points towards a grenade attack. No residue of any explosive has been found so far. A thorough investigation is on."

The police said that windowpanes of a cooperative society office that shares a wall with the police post had developed cracks due to the loud sound.

Rishipal Gupta, a resident of the area, said, "We woke up t...