CROWN KING, Ariz. (AP) - Strong wind gusts will likely keep spreading a wildfire that has grown to nearly 10 square miles and prompted the evacuation of a historic Arizona mining town.

Fire incident spokeswoman Michelle Fidler says gusts of up to 40 mph are expected Thursday in the Prescott National Forest, near Crown King.

She says the wind could push the fire, which is only 5 percent contained, northward but crews will use the opportunity to slow the blaze from the west, where communication towers are threatened.

The fire has destroyed two homes and a trailer, and prompted an evacuation order Sunday. Crown King is a community of mostly summer homes about 85 miles north of Phoenix.

The blaze started at a home, but investigators have yet to determine the cause.