A derailment in Mount Carbon, West Virginia resulted in a number of enormous explosions when tanks bearing crude oil were ignited.
More than 24 of the trains 109 cars left the tracks,
The National Transportation Safety Board released a statement on the incident:
"Some of the derailed tank cars released an unknown amount of crude oil onto the ground, which immediately ignited.
"Some of the crude oil likely entered the river. Downstream water treatment intakes on the Kanawha River were closed as a precaution."
VICE News reports that a boom in North Dakota's Bakken region has increased the amount of crude oil being hauled across the US, as well as the number of accidents.