MOUNT JOY TOWNSHIP – Police in Lancaster County are investigating a fatal accident in which a child was struck. On July 17 around 6:40 p.m., a child was struck in the 1500 block of S. Market Street in Mount Joy Township. Officers say a 19-month-old female was hit in the eastbound lane. Multiple witnesses saw the incident and began medical assistance on the child, who was rushed to Hershey Medical Center where she died. The names of the victim and the driver of the vehicle have not been released. The investigation is on-going.