A wildfire in Southern California has burned over 65,000 acres in Santa Barbara and San Luis Obispo counties, officials said.

Millions of Southern California residents are breathing unhealthy air due to a large wildfire in the Central Coast area. As of Monday morning, the Gifford Fire had scorched more than 65,000 acres in San Luis Obispo and Santa Barbara counties with only limited containment.

The blaze injured three people, put hundreds under evacuation orders and threatened 460 structures, officials said.