Rosemont hit-and-run turns into a crash, arrest and a search

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ROSEMONT, Ill. --  What started as a hit-and-run on the Tri-State ended in a crash, one arrest and a brief search.

A driver hit a state trooper's squad car then tried to get away on the northbound Balmoral exit in Rosemont.

The car crashed in its attempt to get away. Police were able to take one person from the car into custody but the other occupant got out and ran.

Police found a gun in the car.

The search is ongoing for the second offender, who the police say they've identified.

The trooper wasn't seriously hurt in the initial accident.

WGN's Judy Wang has more with the story.