CHICAGO — Police said an off-duty Chicago police officer was wounded early Saturday morning in a South Side shooting.

According to 22nd District police, the 31-year-old was having an argument with another man near West 104th Street and Western Avenue around 2:30 a.m. After the argument, the man shot at the 31-year-old several times and hit him once in the back before running away.

The 31-year-old was taken by ambulance to Advocate Christ Medical Center for his injuries. He was listed in fair condition.

Later Saturday, police said the 31-year-old is a police officer who was not on duty at the time of the shooting. His name has not yet been released.

Police said they currently have no one in custody as Area 2 detectives continue to investigate.