According to the Wall Street Journal, the train was moving at twice the speed limit for that curve.
Former Congressman Patrick Murphy was aboard, along with at least one news producer and others.
Fire burned throughout the night following the derailment of a Canadian National Railway train carrying propane and crude oil in northwestern New Brunswick.
The train was composed of 90 train cars, 12 of the cars derailed and 3 exploded.
Casualties feared after a train carrying crude oil derailed in the Quebec town of Lac-Megantic early Saturday, sparking explosions and sending massive flames through the air. The fire has prompted an evacuation, forcing at least 1,000 residents from their homes.