California Gov. Jerry Brown declared a state of emergency in Riverside County Thursday as a massive fire tore through thousands of acres near Idyllwild in the San Jacinto Mountains, according to a report on Time.com.

The Cranston fire, which started last Wednesday, has burned down five homes and forced thousands of residents to leave their homes in the Idyllwild area. It came as California was already facing an intense heat wave, and other fires nearby on Thursday required some firefighting resources to be diverted, according to the Los Angeles Times.

The Ferguson fire, another blaze in central California about 300 miles away from the one in Riverside County, shuttered parts of Yosemite National Park earlier this week through at least Sunday, authorities said.

The Cranston fire erupted on July 25 in the San Jacinto Mountains and has spread over 4,700 acres in the area.

Authorities ordered evacuations for a number of communities in the area, including Idyllwild, the Apple Canyon area, Mountain Center Community, the lake Helmet area and the Hurkey Creek area.

Officials from the San Bernardino National Forest told residents on Thursday the fire would cause closures for several campgrounds and picnic areas as well.

The Cranston fire was no accident, authorities said. Brandon N. McGlover, a 32-year-old man from Temecula, was arrested Wednesday for allegedly starting the blaze and several others in southwest Riverside County.

McGlover remained in jail on Thursday, according to the Desert Sun, with his bail set at $1 million. He is expected to appear in jail on Friday morning.

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