Chicago police are hoping the public will help them track down a man who appeared to be armed with a silver rifle inside a Metra parking garage in the Loop on Thursday afternoon.
CPD released three images of a man, one of which shows him carrying a chrome weapon.
Officers responded to the Metra garage at 414 South LaSalle around 1:47 p.m. after several callers reported seeing the man with the gun.
According to CPD, the suspect was wearing a black winter jacket with dark jeans. He had a red bandana hanging out of his back right pocket and also carried a silver and black backpack, police said.
Witnesses last saw him walking west on Polk Street.
Anyone with information about the man can call Central (1st) District police at 312-745-4290.