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Originally published on ABC News.

An early-morning oil train derailment today has led to the evacuation of a small town in North Dakota.

About 40 residents of Heimdal, North Dakota, were forced to leave their homes around 7:30 a.m. today after the Burlington Northern Santa Fe tanker car derailed and caught fire.

In a statement, BNSF said the train was carrying 109 cars, 107 filled with crude oil and the other two loaded with sand. The fire, involving six derailed cars, was still going as of early evening.