January 27, 2010 (CHICAGO) — Police are searching one of Northwestern University’s buildings in downtown Chicago after a man was reportedly spotted with a gun.

The report, which was posted on the Northwestern University website, indicates that at approximately 10 a.m. a man with a gun in his waistband was seen on the 11th floor of the Rubloff Building, 375 East Chicago Ave., on the Chicago campus.

No injuries or threats have been reported, police said.

The building is on lockdown. Police said all should stay in their offices with their door locked.

The man with the gun is described as a white male in his 20s, approximately 5 feet 9 inches tall, brown-blonde hair, wearing a button-down shirt, blue jean and a black jacket

Chicago and university police are working together to search the building.

Source: WLS Chicago