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YUBA COUNTY — A quickly-spreading wildfire in Yuba County has destroyed several homes and structures, and threatens even more.

The so-called Cascade Fire had quickly grown to 5,000 acres overnight into early Monday, according to Cal Fire.

Highway 20 between Marysville Road and Grass Valley is open for those needing to evacuate.

There were no immediate reports of injuries.

Stay with FOX40 and for the latest as this story develops.