PICTURED: Mother, 31, and her four children who were among seven people killed in a wrong-way accident

A mother and her four children were among seven people killed when a wrong-way driver rammed a pickup truck on an Illinois highway early Sunday morning.

The violent crash happened around 2:11 a.m. on Interstate 90 in McHenry County, about 50 miles from Chicago.

Illinois State Police say Jennifer Fernandez, 22, of Carpentersville, Illinois was driving a 2010 Acura TSX the wrong way on I-90 for ‘unknown reasons’ when she hit the road. Chevrolet pickup truck driven by Thomas Dobosz, 32, of Rolling Meadows, Illinois. Both vehicles caught fire on impact.

Fernandez was found dead at the scene, state troopers said, along with all of the passengers in Dobosz’s van, including his wife and four children.

Lauren Dobosz, 31, of Rolling Meadows and five children, four of whom were hers, were killed in the crash, according to Illinois State Police. The children were aged 5 to 13 years old.

Thomas Dobosz was the sole survivor of the crash and remains hospitalized at Loyola University Medical Center.

The five children who were killed in the crash were two 13-year-old girls, a 7-year-old boy, a 6-year-old boy and a 5-year-old girl, all from Rolling Meadows.

Scene of the crash on I-90 when Jennifer Fernandez, 22, drove the wrong way on the freeway for “unknown reasons” and crashed into the van. Both vehicles caught fire on impact

The five children who were killed in the crash were two 13-year-old girls, a 7-year-old boy, a 6-year-old boy and a 5-year-old girl, all from Rolling Meadows. Their names have not been released.

Neighbors told ABC7 Chicago that four of them were the couple’s children.

“When you find out these are people you’ve known for many years, it hits a little harder,” neighbor David Moreno said. “Losing your family in a split second like that won’t be easy for anyone.”

“I understand one of the older girls had a friend with them,” Moreno added. “I know it’s going to be devastating to the community just to know that was someone people knew.”

Lauren Dobosz’s colleague Kenny Felton said she started working at Lulu’s Gaming in Rolling Meadows two months ago and described her as creative and always ready to help.

“She loved her children and her husband,” Felten said. “It was his life.

“He’s going to have a tough road ahead of him when he finds out what happened and wishes them all the best, and whatever we can do, we’ll be there for them,” he added.

Lauren Dobosz, 31, of Rolling Meadows and five children, were killed in Sunday’s crash. Her husband Thomas Dobosz, 32, who was driving the van, was seriously injured

Other neighbors along Owl Drive in Rolling Meadows told FOX 32 Chicago the kids were always saying hello.

They said the couple were caring for elderly grandparents who had lived in the Owl Drive home for some time.

Investigators are working to determine why Fernandez was moving in the wrong direction in the fatal crash that led to another collision.

A tractor-trailer struck another tractor-trailer when it came to a sudden stop to let a medical helicopter land, officials said. A trailer on one of the trucks was damaged and boxes were strewn across the highway. One person was slightly injured.

Investigators are working to determine why Fernandez was traveling in the wrong direction

A charred pickup truck is hauled away from the scene of an accident in Illinois. A mother and five children were among seven killed when a wrong-way driver rammed the van early on Sunday

The violent crash happened around 2:11 a.m. on Interstate 90 in McHenry County, Illinois, about 50 miles from Chicago. Seven people were killed, including five children