Train carrying crude oil derails, explodes in North Dakota,USA Monday Dec 30,2013

A mile-long train carrying crude oil has derailed and exploded, triggering a "giant fireball" after colliding with another train in North Dakota on Monday Dec 30,2013

The accident happened on Monday afternoon in North Dakota near the border with Canada when a train hauling more than 100 freight cars derailed and a second train then crashed into it, causing several explosions that sent black smoke up into the sky

An estimated 10 cars of the 106-car oil train were on fire, andauthorities said they would let them burn out. Train operators uncoupled about 80 cars and moved them away from the blaze

Authorities said the train went off the track less than a mile outside Casselton, North Dakota (2010 population: 2,329) and was then struck by a second train.

The town’s mayor told reporters that there were no casualties in the accident, though multiple blasts could be seen from miles away.