CHICAGO (CBS)– A driver is facing DUI charges after hitting the vehicle of a Metropolitan Water Reclamation District officer’s vehicle.

Police said the officer’s vehicle was rear ended in Berwyn at Harlem and Pershing around 1 a.m. Thursday.

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The officer suffered minor injuries and was taken to a local hospital.

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The impaired driver was arrested at the scene and is now facing charges, police said.

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