Firefighters from the Alameda County Fire Department and from Cal Fire were mopping up Sunday night after fire burned about four acres of grasslands north of Livermore.
The fire, at the intersection of North Livermore Avenue and Hartford Road about a mile and a half north of Interstate Highway 580, was reported at 7:19 p.m. Smoke and flames were on both sides of North Livermore Avenue, the California Highway Patrol reported.
By 8:30 p.m., the fire was virtually out. There were no injuries reported, and no structures were threatened. The cause of the fire was under investigation Sunday night.