Brush fire burning in Cochise County was human-caused

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PORTAL, Ariz. -- Fire crews are working to knock down a brush fire burning in Cochise County in southeastern Arizona.

The South Fork fire is burning in the Coronado National Forest just southwest of Portal, Ariz.

The fire, which started Thursday, is burning in a deep canyon. Crews say the fire is being fueled by the terrain and wind.

According to the U.S. Forest Service, the fire is approximately 88 acres and has no containment.

No structures are threatened at this time, however, South Fork Road is closed at the Cave Creek Road intersection. The South Fork campground is also closed.

Access to the fire is limited so fire crews are using helicopters to help battle the flames.

Authorities said the fire was human-caused and is under investigation.