A 12-year-old Tuscaloosa boy was killed in a crash that injured three other children and an adult in Pickens County on Tuesday.

None of the victims were wearing seat belts, according to Alabama State Troopers.

The crash happened at 2:45 p.m. when the 2000 Ford Explorer struck several trees on the side of Alabama Highway 86 near Carrollton. The child who died was transported to Pickens County Hospital, where he died a short time later.

The driver and the other three children were transported to DCH Regional Medical Center in Tuscaloosa. Their names were not released and their conditions weren't available Wednesday.

The preliminary investigation indicates seat belts were not in use, according to troopers. The cause of the crash remains under investigation.