The woman, who appeared to be in her 40s, was pronounced dead at the scene after being struck near the Harristown Road grade crossing shortly before 10:30 a.m., responders said.
Borough and NJ Transit police responded and summoned an Advanced Life Support unit, which made the pronouncement.
The Bergen County Line train No. 45 left Hoboken at 9:48 a.m. and was to arrive in Suffern at 10:51 a.m., said Nancy Snyder, NJ Transit's chief media relations and communications officer.
Service was temporarily suspended on the Bergen County Line.
NJ Transit police were leading the investigation. They were trying to determine whether the death was accidental or intentional.
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ALSO SEE: A suicidal woman who survived an overnight leap from a bridge between Clifton and Garfield with serious injuries was rescued after an officer who was searching for her heard her screams, authorities said Wednesday.
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ALSO SEE (VIDEO) A commuter train from Hoboken plowed through a stalled tractor-trailer Tuesday night in Rockland County.
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