A fast-growing brush fire ignited on Monday morning in southern California, prompting evacuation orders for thousands of residents and damaging at least one home. The Sandy fire was reported just after 10 a.m. in Simi Valley, a city in Ventura County approximately 30 miles north-west of Los Angeles.
Fire Spread and Response
By 3:30 p.m., the blaze had expanded to more than 800 acres, driven by wind gusts exceeding 30 mph. As of Monday afternoon, the fire remained uncontained, according to fire officials.
Mandatory evacuation orders were issued for more than 20,000 residents in the southern part of the city, as estimated by the New York Times. Simi Valley has a population exceeding 125,000 people.
Aerial and Ground Efforts
Aerial footage from local television stations showed at least one home engulfed in flames, though fire officials did not provide an exact count. Multiple helicopters were observed performing water drops over the blaze, while massive clouds of gray smoke blanketed the neighborhood. Crews worked urgently to prevent the flames from moving down slopes into the suburban areas of Thousand Oaks.
A National Weather Service advisory warning of winds between 20 and 30 mph expired at 3 p.m. Scott Dettorre, a spokesperson for the Ventura County Fire Department, stated, "As the sun sets, those winds will calm down even more."
Closures and Investigation
The Ronald Reagan Presidential Library and Museum, located on a hillside a few miles away, announced it would be closed for the day due to the fire. The cause of the blaze is currently under investigation.
The Associated Press contributed to this report.



