On Tuesday, December 15, 2015, at 1116 hrs, the Watertown Police and Fire Department responded to a motor vehicle accident on Mount Auburn Street. Upon arrival it was determined that the accident occurred in a driveway on private property. As a result of the accident, one adult pedestrian sustained serious injuries and was transported to Beth Israel Hospital. The adult driver was also transported to the hospital. This accident is currently being investigated by the Watertown Police Department in conjunction with the Massachusetts State Police assigned to the Middlesex District Attorney’s Office.