A large wildfire, which has burned nearly 22,000 acres in central Oregon, has destroyed four homes and is threatening thousands more with only 5% containment.

Ten structures — including four homes — have been destroyed by a wildfire sweeping through central Oregon, where thousands of residents remained under evacuation orders on Monday, while a blaze in Northern California wine country has so far spared some of the state's most famous vineyards.

Firefighters are battling wildfires in California and Oregon force evacuations as dry winds and heat fuel rapid spread.