An FIR has been registered at Mahanagar police station against the unknown caller and an investigation is underway, police said.

Lucknow: Uttar Pradesh Chief Minister Yogi Adityanath has received bomb threat following which a case has been filed against an unknown person by Uttar Pradesh police on Monday. Giving details, police said the threat call was made on March 2 to a chief constable posted at the security headquarters.

“The caller told the Chief Constable that Uttar Pradesh Chief Minister Yogi Adityanath will be blown up by a bomb and disconnected the call,” officials said.

An FIR has been registered at Mahanagar police station against the unknown caller and an investigation is underway, police said.