PHILADELPHIA (AP) - A woman pushing a baby stroller has been struck and killed by a bus in downtown Philadelphia, but the child is OK.

Police say the 64-year-old woman was hit by a Southeastern Pennsylvania Transportation Authority bus around 5 p.m. Monday and dragged several feet. She was pronounced dead at the scene.Police say the stroller with a baby boy inside was not hit. It rolled and struck a curb. The child was taken to a hospital to be evaluated as a precaution.The driver of the bus remained at the scene.Police continue to investigate.