A woman was injured when she fell under a train after alighting at the platform.
The 20-year-old was travelling on the Northern Rail Leeds to Skipton service when the accident happened at Keighley station at 11.50pm yesterday.
The woman was taken to Airedale General Hospital by paramedics.
She had serious arm injuries and cuts and bruises.
A West Yorkshire Transport Police spokesman said: "It is believed she fell onto the track after alighting the train."
The track reopened within an hour of the accident happening.
He said the incident was not being treated as suspicious and confirmed an investigation was being held.
Police are asking witnesses to contact them on 0800 405040.
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