A woman carrying concealed shot a gunman in the head after he tried to get into her vehicle on the south side of Chicago early Wednesday morning, WFLD-TV reported.

The 23-year-old woman was sitting in her parked car around 2 a.m. in the 1300 block of East 89th Street in the Calumet Heights neighborhood when four men exited a black sedan and one of them tried to get into her car while flashing a handgun, police told the station.

The woman then shot the gunman once in the head, police noted to WFLD, after which the gunman ran from the vehicle.

One of the men he was with started shooting at the woman, striking her once in the arm, police told the station.