Iowa City police say one person has been arrested after a reported armed robbery Tuesday morning.

Dispatchers received a call at 9:04 a.m. for a report of a man with a gun robbing the U.S. Bank branch at 1117 William Street. The caller said the suspect was wearing all black and had a bag in his hand while leaving the bank.

A University of Iowa police officer responded, and talked to someone matching the description of the bank robber, according to a release from Iowa City Police Lt. Scott Gaarde.

The officer found the man had a plastic gun in his possession. Investigators saidsurveillance footage and witness statements identified the suspect as the man who robbed the bank.

Clifton Brinkmeyer, 30, was arrested and charged with second-degree robbery, a Class C felony.

Iowa City police said the robbery remains under investigation.