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Screen grab from video by Casey Brennan on Youtube

A natural gas pipeline exploded and caught fire Monday night near Tioga, North Dakota.

The blast and fire caused no injuries, according to owner and operator Hiland Partners LP.

Hiland said the fire was extinguished by closing values and there was no third-party property damage.

The blast was six miles south of Tioga, in the northwest corner of the state.

The cause of the explosion and fire is unknown and remains under investigation, the Bismark Tribune said.

The pipeline was above ground at the point of ignition, the report said.

The fire started in the “slug catcher,” a large diameter pipe with a hatch that allows workers to remove equipment used in a pipeline cleaning and inspecting process called pigging.

Hiland reported the fire at 8:33 p.m. and extinguished it at about 9:50 p.m., the Bismark Tribune said.

Hiland is controlled by Harold Hamm, the CEO of Continental Resources.