The driver of the car, identified as 18-year-old Safiyyah Muhammad, was taken to Atlanta Medical Center. A 10-year-old child, identified as Maryam Muhammad, also was flown to Egleston, the GSP said.
The firefighters were taken to Southern Regional Medical Center for observation. They have been released.
The critically injured girl was in the front passenger seat. She was restrained by a seat belt and not a child safety seat, the GSP said. The 10-year-old girl was restrained in the back seat in the middle.
The accident is still under investigation.