The Hughes Fire has now burned 8,096 acres in Los Angeles and Ventura counties since igniting late Wednesday morning near Castaic Lake, according to Cal Fire. As more than 4,000 firefighters responded to the scene, an air tanker and four helicopters attacked the blaze from the air, preventing it from jumping nearby Interstate 5, officials said.

Extreme conditions helped fuel the fast-moving fires that destroyed thousands of homes. Scientists are working to figure out how climate change played a role in the disaster.

A new attribution analysis found that climate heating caused by burning fossil fuels significantly increased the likelihood of extreme fire conditions.