At least one structure was destroyed by the fire, Cal Fire said. The cause of the fire remains under investigation.

\"PHOTO:
Eric Thayer/AP
PHOTO: Firefighters work against the advancing Post Fire on June 16, 2024, in Gorman, Calif.
>

About 1,200 campers at the Hungry Valley Park State Vehicular Recreation Area were ordered to evacuate Saturday night, and authorities closed Pyramid Lake, which was expecting thousands of visitors for Father's Day, due to the threat of the Post Fire, Cal Fire said.

The fire was burning parallel to Interstate 5, a major arterial highway in and out of Los Angeles. The freeway was briefly closed on Saturday, triggering a traffic jam, officials said.

\"PHOTO:
Eric Thayer/AP
PHOTO: Firefighters work against the advancing Post Fire on June 16, 2024, in Gorman, Calif.
>

Meanwhile, a second Southern California wildfire was burning near Hesperia in San Bernardino County. The blaze started about 6:49 p.m. PT on Saturday and had burned 1,078 acres by Sunday afternoon, according to Cal Fire.

The wind-driven fire was pushing east Sunday toward the Arrowhead Equestrian Estates in Hesperia, where residents remained under an evacuation warning Monday, according to Cal Fire.

The Hesperia Fire is 72% contained as of Monday evening. There are no immediate reports of injuries or damage and the cause remains under investigation.

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