CHICAGO (AP) — An off-duty Chicago police officer has been wounded in an early morning shooting on the city’s west side. Police say the officer was preparing to enter his vehicle about 3:20 a.m. Tuesday when two men approached him.

One of the men shot the officer in the leg. Police say the officer returned gunfire, but it’s not clear if either one of the men was struck. No arrests have been made.

The officer was in fair condition Tuesday morning at a hospital. He is assigned to the city’s 2nd District and will be placed on routine administrative duties for 30 days.