Illinois State Police investigate a crash that left seven people dead, including children, on Interstate 90 near Anthony Road south of Marengo Sunday morning. | Photo: Captured News

State police have identified three adults involved in a fiery wrong-way driving crash that left seven dead, including five children, on Interstate 90 near Marengo Sunday.

Illinois State Police District 15 troopers responded around 2:11 a.m. Sunday to Interstate 90 near mile marker 33.5, which is west of Route 23 between Marengo and Hampshire.

The Hampshire Fire Protection District, Marengo Fire and Rescue Districts, Genoa-Kingston Fire Protection District and Pingree Grove Fire Protection District also responded to the scene.

A preliminary investigation shows a blue 2005 Chevrolet full-size van was traveling westbound on Interstate 90.

Illinois State Police investigate a crash that left seven people dead, including children, on Interstate 90 near Anthony Road south of Marengo Sunday morning. | Photo: Captured News

A gray 2010 Acura TSX was traveling eastbound in the westbound lanes for unknown reasons, state police said.

The Acura struck the Chevrolet head-on. Both vehicles became fully engulfed in flames.

A medical helicopter landed on the interstate at the crash scene.

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The driver of the Chevrolet, Thomas Dobosz, 32, of Rolling Meadows, was able to get out of his vehicle.

Dobosz was airlifted to Loyola University Medical Center in Maywood with severe injuries, fire officials said.

Illinois State Police investigate a crash that left seven people dead, including children, on Interstate 90 near Anthony Road south of Marengo Sunday morning. | Photo: Captured News

The passenger of the Chevrolet, Lauren Dobosz, 31, of Rolling Meadows, was pronounced dead at the scene.

Five children in the Chevrolet were all pronounced dead at the scene as well, police said.

The children, whose names have not been released, included a 5-year-old girl, 6-year-old boy, 7-year-old boy and two 13-year-old girls. All of the children were Rolling Meadows residents.

The driver of the Acura, identified as Jennifer Fernandez, 22, of Carpentersville, was pronounced dead at the scene.

The McHenry County Coroner’s Office is in the process of scheduling autopsies on the seven victims.

All westbound lanes of Interstate 90 near milepost 33 were closed for an investigation. Traffic was diverted off at Anthony Road.

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Authorities said all westbound lanes had been reopened around 9:25 a.m. after being closed for over seven hours.

The cause of the crash was not known and remains under active investigation, police said.