The Record Fire that started near San Jacinto, California, burned more than 650 acres on Sunday, according to officials.
The brush fire was reported at around 2:15 p.m. near Soboba Road and Gilman Spring Road north of San Jacinto, according to the Riverside County Fire Department.
An investigation by fire officials determined the fire was human-caused.
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The fire remains at 0% contained as of 10 p.m. local time, the fire department said.
At least six firefighters working to put out the fire were hospitalized with minor injuries. Ground units and water-dropping aircraft assisted in battling the fire.
Evacuation warnings were issued for parts of Riverside County in response to the fire.
A care and reception center has been opened at Nicolet Middle School in Banning.
The fire remains under investigation.
