One of the largest wildfires in Arizona's history grew bigger late Friday, prompting officials to issue a new evacuation warning.

Arizona authorities say the Wallow Fire has consumed more than 40,000 hectares since Sunday.

They say the blaze is now threatening the community of Greer, where sheriffs issued a pre-evacuation order Friday.

The nearby Alpine community was ordered to evacuate on Thursday.

The U.S. Forest Service says properties have been consumed by the fires, but there are no reports of casualties.

A second record size wildfire in the White Mountains near the New Mexico border has destroyed property and consumed 35,000 hectares.