A section of Highway 166 in the Cuyama Valley was closed for a time Friday afternoon as firefighters dealt with yet another vegetation fire that grew to 195 acres before they stopped forward progress.

Crews from the Santa Barbara County Fire Department and Los Padres National Forest were dispatched at 3:15 p.m. to the incident at Highway 166 and Hubbard Avenue in the town of New Cuyama.

The fire quickly charred 50 acres, but no structures were threatened, county fire Capt. Scott Safechuck said.

Firefighters stopped the forward progress at 4:45 p.m., estimating the size at 195 acres and 25% surrounded.

Flames were moving at a moderate rate, being driven by winds from the west.

Aircraft, including county Copter 964 and two fixed-wing air tankers, joined the battle, with various ground crews working to contain the blaze.

After stopping the forward progress of the fire, crews remained at the scene to complete mop-up chores and extend the containment line.

The cause of the fire remained under investigation.

California Highway Patrol officers and Santa Barbara County sheriff’s deputies also responded to assist at the scene.

The Cuyama Valley in northeastern Santa Barbara County has seen multiple vegetation fires of various sizes this week, and all remain under investigation, Safechuck added Friday afternoon.

The largest, the Hill Fire, burned 1,383 acres with containment reaching 80% on Friday.