A Gila National Forest official told the Associated Press that a 2,700-acre fire near Silver City, N.M., has grown rapidly and forced some evacuations.

Forest spokeswoman Punky Moore said that structures are threatened, and some ranches, a campground and a lookout were evacuated Sunday afternoon about 15 miles north of Silver City. She didn’t know how many people or properties were affected.

She said 100 firefighters, three air tankers and four helicopters are battling the blaze. A cause hasn’t yet been determined.

She said winds and dry vegetation are feeding the fire, and there is still potential for it to spread.

She said a Type 2 team will join the fight today (May 12), which brings additional people to help when the fire’s complexity and potential to grow exceeds the capabilities of local units.