At approximately 8pm on August 21st, Bristol Borough Police were dispatched to Route 13 near 2nd Ave for the report of a pedestrian struck.  Upon arrival officers found that a mother and a sixteenth month old child that was in a stroller had been struck.  The two were struck by a vehicle heading southbound on Route 13. The striking vehicle was then rear ended by a second vehicle traveling south bound.   The Bucks County Rescue Squad transported the mother and child to Jefferson Torresdale Hospital and the child was later transferred to St. Christopher's Hospital for Children.  Both drivers stayed at the scene and are cooperating with the investigation.  Assisting at the scene were the Bristol Township Police Department, Tullytown Police Department, The Bristol Borough Fire Department along with the Bristol Township Fire Police assisted at the scene.  Both the mother and child are listed in critical condition.  Due to the extent of the injuries the Bucks County District Attorneys Homicide by Auto Unit is assisting Bristol Borough Police with the investigation