OKLAHOMA CITY – Off-duty police officers with the OU Health Sciences Center shot and killed a suspect in an overnight shooting at a southwest Oklahoma City nightclub.

Oklahoma City Police said an argument started around 2:00 a.m. Thursday inside Club Rodeo. As security officers were trying to clear the club and the parking lot, a man in the crowd pulled out a gun and started shooting at officers.

Off-duty OUPD officers were working with regular security at the club. They returned fire, hitting three people.

Officers shot and killed 24-year-old suspect Lance Dawkins.  Johnny Mixon, 23, was also hit and taken to Presbyterian Hospital.  He's listed in critical condition. A third man, 24-year-old Bryan Bonner, received minor injuries, and was treated and released from a local hospital.

Police said there were several people in the parking lot when the shooting started, but many of them left before police arrived. Investigators want to speak to any potential witnesses. Anyone with information should call the Homicide Tip Line at 405-297-1200.

The four officers involved in the shooting have been placed on administrative leave from their jobs at OU Health Sciences Center.