A scary moment at a train station in Philadelphia was captured on surveillance camera.
A stroller with a 14-month-old girl inside got away from the mother Wednesday.
It slid down a slanted platform and fell onto the tracks.
The mother was quick to act, jumping on the tracks.
She unhooked her daughter from the stroller and handed her to a passenger on the platform.
When other commuters realized what was happening, they ran over to help.
The girl was hospitalized for a cut on her forehead, but is expected to be OK.
Officials say it was an accident, and the mother will not be charged.