Source: NY Times:

A total of 67 people were injured, including 11 critically, a New York Fire Department spokesman, Jim Long, said.

The derailment occurred when several cars of a Hudson Line train headed south from Poughkeepsie, N.Y., left the tracks about 7:20 a.m. just north of the Spuyten Duyvil station near where tracks pass under the the Henry Hudson Bridge , according to a Metropolitan Transportation Authority spokesman, Aaron Donovan.

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