Time-lapse video shows the start of the Holy Fire

A Southern California wildfire - which authorities say was set by an arsonist with a grudge against a neighbor - doubled in size overnight into Friday as crews built fire lines and fought to protect thousands of homes in a lakefront community.

The Holy Fire, which broke out on Monday in Holy Jim Canyon in Orange County southeast of Los Angeles, has already destroyed 12 structures and was only 5 percent contained as of Friday.

"Extreme fire behavior was observed to the north and east portions of the fire. Steep terrain, dry fuels, and inaccessible areas continue to be a factor in fire spread," the U.S. Forest Service said on the Inciweb fire tracking website.

Forrest Gordon Clark, 51, who owns a cabin in Holy Jim Canyon, was arrested earlier this week after a standoff with police and charged with arson, making criminal threats and resisting arrest.