DELAWARE COUNTY, Ohio (WCMH) — Four people were killed and another person was injured in a crash that closed a portion of I-71 South in Delaware County for several hours Monday, the Delaware Post of the Ohio State Highway Patrol has confirmed.

According to troopers, a Toyota RAV4 and a Freightliner Cascadia, driven by Ali Mohamud, 39, of Chelsea, Massachusetts, were driving southbound on I-71 near Lewis Center Road. Laylah Bordeau, 25, of Blacklick, Ohio, was driving a Nissan Titan northbound on I-71 and failed to maintain control.

Troopers say Bordeau drove off the left side of the roadway, crossed the median, struck a cable barrier and entered into the southbound lanes of I-71, hitting the Toyota RAV4 head on. The Toyota then hit the Freightliner Cascadia at an angle, overturned on its top and caught fire before coming to a rest on the roadway. The Nissan Titan also caught fire.

OSHP confirms that all four people inside the Toyota RAV4 were pronounced dead on the scene and Bordeau was transported to Grant Hospital with life-threatening injuries. Mohamud was not injured.

The crash occurred around 7:59 p.m. Monday night and I-71 southbound was closed past the US-36/SR-37 exit until early Tuesday morning.

OSHP did not release the names of the four people who were killed. The crash remains under investigation.