Police in Norwood, Massachusetts, say a trespasser was struck on the MBTA commuter rail tracks Monday morning.
Officials responded to the scene shortly after 10:51.
They said the 50-year-old woman was trespassing on track two when she was struck.
A MedFlight was requested to the scene. The victim was transported with serious injuries.
The incident is under investigation.
Stay with necn for more as this story develops.