Two bodies were found inside a burned-out car in the path of a huge wildfire raging near California's border with Oregon, authorities said on Monday, as heavy smoke limited efforts to deploy aircraft to contain the blaze over the weekend.

Since it broke out on Friday, the fast-moving McKinney Fire has forced at least 2,000 residents to evacuate while destroying homes and critical infrastructure, mostly in Siskiyou County, home to Klamath National Forest, according to a release from Governor Gavin Newsom on Sunday.

Two other fires in the county have forced at least 200 residents out of their homes, it said. Those fires grew to more than 1,700 acres combined as of Sunday, the U.S. Forest Service said.

Already the largest blaze in California this year, the fire had scorched 52,498 acres (21,245 hectares) and was 0% contained, the California Department of Forestry and Fire Protection, or Cal Fire, said in a Sunday evening update.

The two bodies were found on Sunday in a car parked in a residential driveway west of the community of Klamath River, the Siskiyou County Sheriff's Office said in a statement on Monday. It said it would have no additional information about the deaths pending identification and notification of next to kin.

More than two decades of drought and rising temperatures,exacerbated by climate change, have made California morevulnerable than ever to wildfires. The two most devastatingyears on record were in 2020 and 2021 based on the number ofacres burned.

Heavy smoke above the fire region helped limit the growth of the McKinney Fire on Sunday but it also grounded aircraft used to fight the blaze, the U.S. Forest Service said in its statement.

Newsom declared a state of emergency for Siskiyou County on Sunday. The declaration will help residents gain access to federal aid and unlock state resources.

One of those forced to evacuate was Harlene Althea Schwander, 81, an artist who moved to the area only a month ago to be near her son and daughter-in-law.

"I'm very sad. My house is gone, all my furniture, all clothes, shoes, coats, boots. Everything is gone," Schwander told Reuters on Sunday outside an American Red Cross evacuation shelter in the town of Weed, about 40 miles south of the McKinney Fire.

It is the second major wildfire to erupt in California this season. The Oak Fire near Yosemite National Park was 67% contained after charred more than 19,244 acres, Cal Fire said on its website.