Illinois State Police said they responded to a three-car crash in the southbound lanes of I-55 near Joliet Road at about 5:01 a.m.
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Police said three people were transported to area hospitals with life-threatening injuries and one of them later died. Further details on the crash were not immediately available.
All southbound lanes of I-55 near Joliet Road were closed at about 5:09 a.m. for the crash investigation, police said. All lanes of traffic were reopened at about 7:46 a.m.