TRAGEDY ON THE TRACKS: Live team coverage NOW ON NBC12

TRAGEDY ON THE TRACKS: Live team coverage NOW ON NBC12

PHILADELPHIA, PA (WWBT) - An Amtrak train was going more than 100 mph when it crashed in Philadelphia killing at least seven people, according to federal investigators.

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More than 200 people were treated at hospitals overnight after the Amtrak Northeast Regional Train 188 went off the rails Tuesday.

Investigators from the National Transportation and Safety Board are now working to try to find out what caused the derailment. The train's black box is being examined as part of the investigation.

The train was going from Washington, DC, to New York City when it derailed in Philadelphia's Port Richmond neighborhood.

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