The No. 392 Illini train struck a vehicle about 9:40 p.m. at the Stuenkel Road crossing, killing 26-year-old Katie A. Lunn of Chicago.
Lunn was a dance instructor who was on her way home from a day of competition at Governor's State University, the Chicago Tribune reported.
The train, carrying 155 passengers and crew, was not damaged and continued on its route shortly after the accident, according to University Park Police Sgt. Dan Murphy. Lunn was the sole occupant of the vehicle.
The train was moving at a "decent speed," Murphy said, completely destroying the vehicle in the collision. No one on the train was injured.
Authorities continue to investigate the incident. An autopsy has not yet been scheduled.