Firefighters battle blazes amid dry, hot weather as fires in Napa county and Deschutes and Jefferson counties spread

Wildfires in California wine country and central Oregon grew overnight, prompting hundreds of evacuations as firefighters worked on Sunday to try to contain the blazes amid dry, hot weather.

The Pickett Fire in Napa county had grown to more than 10 sq miles (26 sq km) and was 11% contained as of early Sunday, according to the California Department of Forestry & Fire Protection.

About 190 people were ordered to leave their homes, while another 360 were under evacuation warnings as the fire threatened about 500 structures near Aetna Springs and Pope Valley, said Jason Clay, spokesman for Calfire Sonoma Lake-Napa Unit.

More than 1,230 firefighters backed by 10 helicopters were battling the fire, which began Thursday after a week of extremely hot weather. Air assets have also been deployed, including multiple helicopters for targeted water drops and air tankers for fire retardant.