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Update: Large grass fire sparks in Canadian County

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UPDATE: 6:38 p.m. – Scanner traffic indicates that an explosion occurred just after 6:30 p.m.

NewsChannel 4 will bring you more details.

CANADIAN COUNTY – Firefighters are battling a large grass fire in Canadian County.

Shortly after 5 p.m., authorities were called to the area of Hefner and Mustang Rd. for a brush pile that got out of hand.

Initially, officers said a few acres were burning in the area, but the fire continued to grow.

Strong winds continue to add fuel to the blaze, posing a threat to motorists in the area.

This is a developing story. Refresh this page for updated information.