A woman was killed in a crash Wednesday afternoon in north suburban Volo.

A 55-year-old Gurnee woman was driving a red SUV east at 12:23 p.m. on Illinois Route 120 west of Ellis Drive in Volo when a white car entered the eastbound lanes “for an unknown reason,” according to a statement from the Lake County Sheriff’s Office. The SUV then hit the car.

The driver of the car, 24-year-old Susana Ortega, of Round Lake Park, was taken to a hospital and pronounced dead, the sheriff’s office said. An autopsy Thursday found she died of traumatic injuries in the crash, the Lake County Coroner’s Office said. Toxicology results were pending further investigation.

The woman driving the SUV was also taken to a hospital with injuries that were not thought to be life threatening, the sheriff’s office said.

The sheriff’s Technical Crash Investigations Team is investigating.