New York Metro-North train 'more than double limit'
A train which crashed in New York City on Sunday was going 82mph (132 km/h) in a 30mph zone when it ran off the rails, investigators have revealed.
Four people were killed and more than 60 injured when the Metro-North train from Poughkeepsie to New York City derailed in New York's Bronx borough.
The National Transportation Safety Board (NTSB) is investigating whether a mechanical fault or human error led to the train's high speed.
Emily Thomas reports.
03 Dec 2013