Updated: 7:16 p.m. March 28

First discovered: 4 hours ago, 2:46 p.m. March 28

Initial location: Sonoma County, Calif.

Fire type: Wildfire

Fire name: Rock

Rock Fire initially started today at 2:46 p.m. at in Sonoma County, California.

After being active for four hours, it has burned six acres of private land, an increase of three acres since the last update. There is currently no information on the containment of the fire and its cause has not yet been determined.

Source: National Interagency Fire Center