(UPDATE 8:00 PM) -- Illinois State Police have released preliminary details in Thursday evening's deadly crash.
They say it happened just after 5:00 pm, as the driver of a white work truck was headed northbound on Interstate 155 at milepost 24.
For unknown reasons, the car veered off the road, rolled, and ejected the driver.
The Tazewell County Coroner would later pronounce him dead at the scene.
That location on I-155 was closed for roughly three hours following the crash.
All lanes have since reopened.
State police report the driver killed was an man in his 40's.
Identification is pending notification of his family.