A wildfire that was reported Tuesday in Oak Creek Canyon in Arizona is threatening homes as it has scorched about 4,000 acres, officials said Wednesday,
The blaze, named the Slide Fire, has forced the closure of Highway 89A from Sedona to Fort Tuthill in Flagstaff and Forest Road 535 off Highway 89A.
The cause of the fire is unknown.
Electricity has been shut off from Slide Rock State Park, north through the canyon.
About a three-mile from Slide Rock State Park north toward the Sterling Springs Hatchery has been evacuated, as well as the East Pocket Forest Service Lookout Tower. Evacuees were relocated to Sinagua Middle School in Flagstaff.
Coconino County issued a pre-evacuation warning for residents in Kachina Village and Forest Highlands subdivisions. A mandatory evacuation order had not been given as of late Wednesday night.
Smoke from the wildfire has reached to the Flagstaff area, and health officials asked residents to limit their exposure outside.