Erie police arrested the driver of a car involved in a three car crash Saturday. The accident happened just before 6 p.m. at 7th and Liberty streets. After the crash, one of the cars fled the scene, but witnesses were able to give police the license number of the car. Police found the vehicle minutes later in the 300 block of Plum Street. The driver of the car was arrested for a DUI. No one was seriously injured in the accident.