An assembly wheel on a southbound A train derailed near West 81st Street in Manhattan Saturday morning, the MTA said.
The derailment occurred just after 9 a.m. No injuries were reported. Dozens of passengers were removed from the train and placed on another train that backed up to the scene of the derailment, authorities said.
Passengers were taken to the 59th Street-Columbus Circle Station.
A and D trains are now running local from the 125th Street to 59th Street-Columbus Circle in both directions.
Crews were working Saturday afternoon to get the A train back on the tracks. The MTA said it was not yet known when full service would be restored.