A hit and run accident is under investigation in Newtown.  Police say a dark gray dump truck attempted to pass an SUV on South Main Street shortly before 10am on Saturday.  The SUV was hit around Mile Hill Road as the driver stopped after seeing a road repair patch in the roadway.  The truck made contact with the Nissan’s passenger side front fender, passenger side door and passenger side front tire as it passed and did not stop.  The Nissan driver was not injured. Anyone with information is asked to contact Newtown Police at 203-270-4255.