Crews continue to extinguish the Dias Fire near Coalinga

FRESNO COUNTY, Calif. (KFSN) -- Fire crews are still working to put out a wildfire burning southwest of Coalinga in Fresno County.

The now-called "Dias Fire" broke out just before 3:30 a.m. Wednesday near Jacalitos Creek Road and Lost Hills Road. CAL FIRE first called the flames the "B20 Fire."

CAL FIRE's website says more than 850 acres have burned so far, with 65 percent of it contained.

The rough terrain created challenges for firefighters trying to reach the flames.

CAL FIRE units from Fresno and Kings Counties are taking on the blaze.

Air tankers have assisted ground crews in the firefight.

The cause of the Dias Fire is under investigation.