At least four people were killed and 63 others were injured when a Metro-North train jumped the tracks as it was rounding a curve about 100 yards from a stop.
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A Metro-North passenger train lays on its side after derailing in the Bronx borough of New York, on Dec. 1, 2013. The train derailed on a curved section of track in the Bronx on the morning of Dec. 1., coming to rest just inches from the water and causing multiple fatalities and dozens of injuries, authorities said. Metropolitan Transportation Authority police say the train derailed near the Spuyten Duyvil station.
— Mark Lennihan / AP
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Cranes salvage the last car from from a train derailment in the Bronx section of New York, on Dec. 2. Federal authorities began righting the cars Monday morning as they started an exhaustive investigation into what caused a Metro-North commuter train rounding a riverside curve to derail, killing four people and injuring more than 60 others. A second "event recorder" retrieved from the train may provide information on the speed of the train, how the brakes were applied, and the throttle setting, a member of the National Transportation Safety Board said Monday.
— Mark Lennihan / AP
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National Transportation Safety Board (NTSB) and Metropolitan Transportation Authority (MTA) inspectors, check the train tracks leading up to Sunday's fatal passenger train derailment near the Spuyten Duyvil, Metro-North train station on Dec. 2.
— Peter Foley / EPA
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NTSB investigators carry an event recorder from the derailed Metro North train on Dec. 1, in the Bronx borough of New York City. Multiple injuries and four deaths were reported after the seven car train left the tracks as it was heading to Grand Central Terminal along the Hudson River line.
— Handout / Getty Images North America
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Rescue workers search through a car at the site of a Metro-North train derailment, on Dec. 1. All seven cars ran off the tracks on a sharp curve, officials said. The crash happened at 7:20 a.m. on Dec. 1.
— Adrees Latif / X90022
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NTSB investigator Michael Flanigon inspects track at the scene of the train derailment, on Dec. 1.
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New York Police Department officials use a boat to search the waters around the site of the accident, on Dec. 1.
— Adrees Latif / X90022
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Emergency personnel remove a body from the scene, on Dec. 1.
— John Minchillo / FR170537 AP
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The wreckage of a Metro-North commuter train lies on its side after it derailed just north of the Spuyten Duyvil station, on Dec. 1.
— Christopher Gregory / Getty Images North America
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People wait at Grand Central Station following a Metro-North train derailment, on Dec. 1.
— Eric Thayer / X02070
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Emergency workers examine the site of a Metro-North train derailment in the Bronx borough of New York on Dec. 1.
— Carlo Allegri / X02452
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First responders gather around the derailment of a Metro-North passenger train in the Bronx borough of New York on Dec. 1.
— Craig Ruttle / FR61802 AP
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First responders tend to injured people near the site of the derailment of a Metro-North passenger train in the Bronx borough of New York, on Dec. 1.
— Craig Ruttle / FR61802 AP
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Emergency personnel respond to the scene of a Metro-North passenger train derailment in the Bronx borough of New York on Dec. 1.
— Craig Ruttle / FR61802 AP
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A Metro-North locomotive lies on its side after derailing, on Dec. 1, in the Bronx borough of New York.
— Mark Lennihan / AP
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A person is evacuated from the scene of the derailment of a Metro-North passenger train in the Bronx borough of New York on Dec. 1.
— Craig Ruttle / FR61802 AP
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Emergency rescue personnel work the scene of a Metro-North passenger train derailment in the Bronx borough of New York, on Dec. 1.
— Craig Ruttle / FR61802 AP
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Emergency workers stand near the site of a Metro-North train derailment in the Bronx borough of New York, on Dec. 1.
— Eric Thayer / X02070
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Rescue workers are seen at the wreckage of a commuter train that derailed on Dec 1, in the Bronx borough of New York.
— Timothy Clary / AFP
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A victim is treated at the site of a Metro-North train derailment in the Bronx borough of New York on Dec. 1.
— Eric Thayer / X02070
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First responders gather at the derailment of a Metro-North passenger train in the Bronx borough of New York on Dec. 1.
— Craig Ruttle / FR61802 AP
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Emergency personnel help Metro-North train engineer William Rockefeller Jr., center, at the site of the derailment.
— Eric Thayer / X02070
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Emergency crews respond after Metro-North train derailed near the Spuyten Duyvil station on Dec. 1, in the Bronx borough of New York City.
— Christopher Gregory / Getty Images North America