At least three dozen homes destroyed in wildfire near Oroville

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Authorities surveying damage from wildfire near Oroville, California, find at least three dozen homes destroyed.

SkyFox flew over the damaged area on Tuesday afternoon. 

Authorities say a wildfire burning near Oroville in Northern California has destroyed at least three dozen homes.

The numbers released Tuesday come after fire crews surveyed the destruction of the blaze burning in the grassy foothills of the Sierra Nevada, about 60 miles (97 kilometers) north of Sacramento.

The California Department of Forestry and Fire Protection says at least 4,000 people are under evacuation orders. Some residents have returned home.

The blaze has burned nearly 9 square miles (23 square kilometers) and was 45 percent contained.

The cause of the fire remains under investigation.