BERRIEN COUNTY, Mich. -- A semi driver was killed in a crash on 1-94 in the westbound lanes Friday morning, according to the Berrien County Sheriff's Office.

When first responders arrived to the scene just before 9 a.m., they found the semi engulfed in flames.

They were unable to get the driver out of the vehicle.

Witnesses told investigators the semi struck a guard rail before it ran off the road, struck a tree and burst into flames, according to the sheriff's office.

The driver was found deceased inside the truck. An autopsy will be conducted to confirm identity and cause of death.

The driver's name is being withheld pending notification of next of kin.