A young woman who lost an arm and a leg after being struck by a downtown train in Harlem was subway surfing when she fell under the train’s wheels, NYPD sources said Thursday. The unidentified victim,

A subway surfer lost her arm and leg after she was hit by a train in a Manhattan subway station Wednesday night, according to police sources and the MTA. The woman was trying to climb on top of a moving No.

The teen was found in the tunnel between the West 145th and 135th Street stations, with severe injuries to her right arm and right leg, authorities said.

The evening rush hour was a mess at one New York City subway station after a teen lost a leg and an arm after trying to surf on subway cars. Police and MTA officials say the 18-year-old was still in critical condition on Friday morning after attempting to clamber up a moving No.

She was attempting to pass between cars while atop the No. 2 train when she fell onto the tracks around 6 p.m. Wednesday night, according to reports.