The Indiana State Police (ISP) is investigating the cause of death of a truck driver who was found deceased in his crashed vehicle in a wooded area off the interstate.

The crash occurred around 4 a.m. on March 11 in Jackson County, Indiana.

ISP says that 37 year old Chicago-based truck driver Frederick D. Felder was driving a 2016 Freightliner semi pulling a box trailer south on I-65 at mile marker 43 when he left the road for unknown reasons.

Troopers say that the Freightliner went off the interstate and struck a fence and trees before coming to a stop.

First responders found Felder deceased inside the cab.

“The investigation is ongoing to determine whether he died as a result of the collision or whether a medical issue played a role in the crash,” ISP said.

Toxicology results are pending but troopers do not believe that drugs and alcohol were a factor.

Responding agencies include the Jackson County Sheriff’s Department, Jackson County EMS, Seymour Fire Department, Vernon Township Fire Department, and the Jackson County Coroner’s Office.

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