BARTOW COUNTY, Ga. — At least four people are dead and five others are injured after a crash on Interstate 75 southbound in Bartow County.

Bartow County Coroner Joel Guyton confirmed that three adults and a 15-year-old died in the crash. Their names have not been released.

The crash happened around 6 p.m. near mile marker 286. Georgia State Patrol says a Kia van was traveling on I-75 northbound when it left the roadway and crossed the grass median over to the southbound lanes.

The van crashed with a Chevy Tahoe and a Toyota 4Runner, which was also hit by a commercial truck. Troopers say a Hyundai SUV also hit the back of the Tahoe.

Three people inside the van and the 4Runner driver died at the scene. A medical helicopter airlifted the Tahoe driver. Paramedics took two children inside the van along with an adult and child from the Hyundai SUV to the hospital.

Their conditions have not been released.

Troopers say it’s unclear at this time what caused the van to cross over into the southbound lanes.

Lanes started to reopen around 10 p.m.