More than a dozen wildfires roared through Northern California on Monday, killing at least 10 people, destroying at least 1,500 homes and businesses, and forcing the evacuation of up to 20,000 people.

Janet Upton, a deputy director of the California Department of Forestry and Fire Protection, told reporters that at least 15 fires had destroyed roughly 1,500 residential and commercial structures and had burned about 94,000 acres across eight counties since late Sunday night.