Emergency personnel work the scene of the Amtrak train wreck on May 12, 2015 in Philadelphia.
Emergency personnel work the scene of the Amtrak train wreck on May 12, 2015 in Philadelphia.Joseph Kaczmarek—AP
Emergency personnel work the scene of the Amtrak train wreck on May 12, 2015 in Philadelphia.
Emergency personnel work the scene of the Amtrak train wreck on May 12, 2015 in Philadelphia.
Emergency personnel help a passenger at the scene of the Amtrak train wreck on May 12, 2015 in Philadelphia.
Rescue workers climb into the wreckage of a derailed Amtrak train to search for victims in Philadelphia on May 12, 2015.
Emergency personnel work the scene of a train wreck on May 12, 2015, in Philadelphia.
Emergency personnel work the scene of the Amtrak train wreck on May 12, 2015 in Philadelphia.
A crime scene investigator looks inside a train car after a train wreck on May 12, 2015, in Philadelphia.
A police officer takes a seat near the wreckage of an Amtrak passenger train which derailed in Philadelphia on May 12, 2015.
Officials survey the site of a derailed Amtrak train in Philadelphia on May 13, 2015.
Emergency personnel work the scene of the Amtrak train wreck on May 12, 2015 in Philadelphia.
Joseph Kaczmarek—AP
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Photos of the Amtrak Train Crash in Philadelphia

Updated: May 13, 2015 9:48 AM ET

A commuter train bound for New York City derailed outside Philadelphia on Tuesday night, leaving at least six people dead and more than a hundred injured.

Although most of the 243 passengers managed to walk off the train, Philadelphia Mayor Michael Nutter said more than 50 were admitted to local hospitals.

The cause of the derailment is currently unknown though passengers reported that the train started to behave strangely while approaching a bend. Seven carriages including the engine completely left the track.

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