The derailment of the southbound Hudson Line train was reported at about 7:20 a.m., authorities said. The train left the town of Poughkeepsie at 5:54 a.m. and was due to arrive at 7:43 a.m. at Grand Central Terminal in midtown Manhattan.
Four or five cars on the seven-car train derailed about 100 yards (90 meters) north of the station, the Metropolitan Transportation Authority said in a news release. But none of the cars entered the Hudson or Harlem rivers, which are adjacent, the MTA said.