The 904-acre Cuyama Valley fire that sparked Tuesday afternoon hit 50% containment Thursday morning, according to the Santa Barbara County Fire Department.

Firefighters spent Wednesday night into Thursday morning corraling “several small spot fires caused by shifting winds,” County Fire spokesperson Karen Cruz-Orduña said.

“Firefighters continue strengthening containment lines and mopping up hot spots across the incident today in the Cuyama Valley…” she said. “Resources remain engaged in mop-up operations 50–100 feet interior from containment lines, focusing on heavy heat remaining in juniper vegetation.”

Cruz-Orduña said 275 people were assigned to the blaze, known as the Foothill Fire.

The cause of the fire was still under investigation. One structure has been destroyed, per County Fire.

Emergency crews first converged on Highway 166 east of New Cuyama at around 4:02 p.m. Tuesday for a report of a growing vegetation fire that was burning toward Castro Canyon Road at a moderate rate.

The fire spread to 250 acres Tuesday night, then to 906 acres by Wednesday at 8 p.m.

County officials issued evacuation orders late Tuesday afternoon for the areas north of Castro Canyon, east of Perkins Road and west of the Cuyama River.

Later that night, evacuation orders were expanded to include areas south of Perkins Road to Maudie Peak, and evacuation warnings were issued for the areas south of Foothill Road at the county line, east of the Cuyama River, and west of Quatal Canyon.

All evacuation orders and warnings remained in effect as of Thursday morning, per CAL FIRE.

Click here for the evacuation map and get updates here.