A mother and her four children were traveling on Highway 54 in Jonesboro, Georgia when the mother heard a pop in the backseat. According to police, "She looked back into the backseat and saw that her 4-year-old daughter was slumped over. She had been shot while she was in the car seat."
The woman pulled over and called 911. The girl, who was shot in the head, was airlifted to the children's hospital in Atlanta. Police said she was in critical condition.
Police found a gun inside the van but would not say if the girl shot herself of if she was shot by one of the other children inside the van.
The incident remains under investigation.