JEFFERSON CO., IL (WSIL) -- Illinois State Police say a Mt. Vernon woman hit a tractor trailer head-on along Route 148 in Jefferson County Thursday.
Investigators say Jillianne Snyder, 29, of Mt. Vernon, was headed south on Route 148 when she crossed the center line and hit a northbound semi. It happened just before 12 p.m. near Emerson City Road in Jefferson County.
Snyder and a four-year-old boy in her vehicle were taken to an area hospital. The truck driver was not hurt.
It took crews about two hours to clear the crash scene. The exact cause of the crash remains under investigation.