A Metro North train derailed early this morning in the Bronx, killing at least four and injuring scores of other passengers in a stretch of track where similar accidents have occurred before.

According to reports, the southbound train left Poughkeepsie at 5:54 a.m. and derailed in the Bronx at 7:20 a.m. as it came around a curved section of track near the Spuyten Duyvil station. Four or five cars left the tracks and came to a rest just feet from where the Harlem and Hudson rivers meet.

According to the AP, there are around 130 firefighters currently on the scene.

MTA spokesperson Aaron Donovan told NY1 that the early-morning train was unlikely to have been carrying many passengers and that the MTA is still unsure what caused the derailment.

CBS is reporting that witnesses told 1010Wins that the train had been "moving fast" and took a "really hard turn" immediately before derailing.

“I was at my desk at my computer, and I thought a plane was coming in,” Steve Kronenberg, told WCBS.

The stretch of track has been the scene of other, similar accidents. On July 18, a CSX freight train derailed in the same spot. The MTA had to rebuild at least 1,500 feet of damaged track.

Update 9:45 a.m.

As of 9:45 a.m., officials have confirmed that four passengers died and at least 67 were injured. Eleven of the injured are in critical condition, six in serious. At least two people were fatally ejected.

Update 10:00 a.m.

ABC interviewed a passenger who said the train was moving unusually fast.

A passenger who was on the train, Frank Tatulli, told Eyewitness News he takes the train every Sunday morning, and that it was travelling at a higher rate of speed than it normally does. Tatulli said he got out of the train on his own, and suffered head and neck injuries.

[image via AP]