CHICAGO (CBS) — A man turned up at a hospital miles away with a gunshot Sunday, following a shooting involving a gunman and an off-duty police officer in the Forest Glen neighborhood.

Police say an officer heading to work around 8:30 a.m. was in the 5200 block of North Lawler Avenue when he saw someone trying to steal a catalytic converter from a parked vehicle. He announced he was an officer and attempted to intervene when the suspect shot at him.

It was initially unclear whether the suspect was struck, but it turned out he was wounded in the hip.

Police later said a man arrived at St. Bernard Hospital in Englewood with the gunshot wound. He was stabilized and transferred to Stroger Hospital of Cook County for treatment, and was also taken into police custody, police said.

Interim Police Supt. Charlie Beck said the officer who was involved is a bicycle officer assigned to the Town Hall (19th) District who lives in the Forest Glen neighborhood.

“I think this highlights not only the work ethic, but the investment that Chicago Police officers put in their neighborhoods, and the lengths that they go to to keep them safe,” Beck said.

The incident, including the comprehensive use of force investigation, is being investigated by the Civilian Office of Police Accountability, and the officer involved will be placed on routine administrative duty for 30 days.