Updated

A wildfire has destroyed an estimated 10 to 15 structures and forced the evacuation of hundreds of exclusive Utah homes as lightning-sparked blazes devoured dry grass and brush across the West.

Fire crews were actively fighting fires in about a dozen Western states, where drought has dried out the landscape and contributed to the extreme fire behavior.

In Utah, shifting winds pushed the fire toward a community dotted with multimillion-dollar homes near the mountain resort town of Park City.

Mike Eriksson of the Utah Division of Forestry, Fire and State Lands says the fire burned about 2 square miles Tuesday, and flames were about 100 acres from some homes.

He says authorities have confirmed at least three buildings burned, and estimate 10 to 15 structures have been destroyed in all. It's unclear whether any were homes.