Favorable conditions helped firefighters make headway on the Rye Fire in the Santa Clarita area, boosting containment to 50 percent on Friday evening from 35 percent earlier in the day.
Using more precise air and ground mapping devices, fire officials also cut back the estimated size of the fire by about 1,000 acres to 6,049 acres, according to the Los Angeles County Fire Department.
One structure has been destroyed and 5,460 structures remained threatened. One firefighter was injured, but no civilian injuries or deaths have been reported.
More than 800 firefighters continued battling the blaze.
The Los Angeles County Fire Department expected full containment by Dec. 15.
The Rye Fire initially broke out in Santa Clarita around 9:30 a.m. Tuesday near Rye Canyon Loop. It quickly spread to thousands of acres and prompted evacuations.
The cause of the fire remained under investigation.
On Friday afternoon, the Los Angeles Sheriff's Department announced that it was prohibiting all inmate visits at the Pitchess Detention Center inn Castaic this weekend. The Sheriff's Department said repairs are necessary in the surrounding area, but that the Rye Fire does not does a danger to the facility.
KPCC journalists are covering the fires burning across Southern California and are working hard to answer community members' questions. Let us know what you need to know below.