Security was tightened at the Rashtriya Swayamsevak Sangh (RSS) headquarters at Nagpur in Maharashtra on Saturday after an unidentified caller threatened to blow it up with a bomb, police said.
"A phone call was received at the Police Control Room at 1 pm. A man threatened to blow up the RSS headquarters in Mahal area with a bomb," said DCP, Zone III, Gorakh Bhamre.
A Bomb Detection and Disposal Squad (BDDS) and a dog squad were summoned and conducted a thorough checking of the premises but nothing suspicious was found, he said.
Patrolling has been intensified as a precautionary measure, the DCP said, adding that police are tracking the phone number to identify the caller.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)