VIDEO: Multiple brush fires are forcing evacuations near the Heber-Overgaard area and have forced closures of Highway 277 and 377. The U.S. Forest Service says at least five structures are threatened by the fire, which is at zero containment. The fire has burned 1,500 acres as of Tuesday morning. Navajo County officials say evacuations are underway near DeSpain Ranch Road, with residents being sent to Martinez Hall at the Navajo County Fairgrounds in Holbrook. The Arizona Department of Public Safety says they stopped a semi-truck driver that was dragging parts on the back of the truck Monday, which is believed to be the cause of the wildfire.