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Five people, including two on-duty Chicago police officers, were hurt during a three-vehicle crash on the Dan Ryan Expressway in the Bridgeport neighborhood early Monday, according to an Illinois State Police spokeswoman.

Troopers were called to the area of Interstate 94 and West 31st Street around 3:45 a.m. after receiving information about a three-vehicle crash, one of which was a Chicago Police Department squad car, Trooper Jayme Bufford said in an email.

According to preliminary information, a vehicle coming up behind the squad car rear-ended it, leaving its driver and two on-duty police officers in the squad car suffering from injuries not considered life-threatening.

A third vehicle with two occupants also was involved, but both people in the third vehicle also suffered injuries not considered life-threatening.

The first vehicle, a 2014 Black GMC Acadia, was driven by a man who was identified as 36-year-old Dwayne S. Harvey from Gary, IN, according to Bufford. Harvey, who was the sole occupant in his vehicle was cited for driving under the influence, along with other infractions, authorities said..

Harvey struck the second vehicle, a 2017 White Ford Explorer, causing the squad car to hit the third vehicle, a 2008 Silver Jeep Compass, which struck a concrete wall.