An un-identified Plainfield woman died in a multi-vehicle crash Thursday on I-55 in L:ivingston County.  The 20-year-old was pronounced dead at the scene.  The crash happened just before 2 pm.

Livingston County Coroner Danny Watson said the victim's southbound vehicle crossed the median into the northbound lanes and hit two other vehicles, north of Pontiac. 

Illinois State Police and Pontiac Police are also involved in the investigation.

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