MILLCREEK — Police say an officer fired his weapon while trying to arrest a man at a gas station, and that the suspect fled and was not located.

Just after 2 p.m. Saturday, a Salt Lake police officer discovered a man with a warrant for suspected aggravated sexual assault of a child was at Chevron, 3300 South and 1100 East, Salt Lake Police Sgt. Brandon Shearer said.

When the officer attempted to arrest the suspect, an altercation ensued. Shearer said it is believed the officer fired his weapon during the incident. It was not known whether the man was shot, or how many shots were fired.

The wanted man fled in a vehicle, which officers located at 4125 S. 700 East in Millcreek, Shearer said. A Unified police SWAT team was sent to the home, where police believed they had the suspect contained.

However, about four hours later, police discovered the suspect was not in the house.

Additional details were not released about the man involved in the altercation. Unified Police will investigate the shooting.