CHICAGO HEIGHTS, Ill. (CBS) — Five people were wounded in an apparent shootout in south suburban Chicago Heights late Monday night.

Police were investigating an apparent gun battle between occupants of two cars near the corner of Concord Drive and Division Street.

Crime scene investigators found more than a dozen shell casings on the street.

One of the victims was shot in the head.

Ambulances took two people to Franciscan St. James Hospital in Chicago Heights. Three other gunshot victims took themselves to the same hospital.

Three of the victims had been treated and released by early Tuesday morning. Another had been transferred to John H. Stroger Jr. Hospital of Cook County.

The condition of the fifth victim was not immediately available.