Sun Valley: The fire that the Los Angeles Fire Department responded to at 8:41 p.m. Wednesday, Jan. 20, 2021, known officially as the "Sunland Fire," escalated to a Major Emergency structure fire. The well-involved 5,736 square foot vacant, boarded, one-story former restaurant on the 8400 block on N. Sunland Boulevard transitioned the firefighting operation from offensive (interior) to defensive (exterior), according to LAFD.

At 9:47 p.m., LAFD stated that after nearly 50 minutes of defensive operations with large handheld and ladder elevated high-volume hose streams, the transition was made back to offensive firefighting to get to the seat of the fire. 111 LAFD personnel were assigned to the location. Sunland Boulevard was closed to all vehicles and pedestrian traffic between Nettleton Street and the Golden State Freeway until operations are completed. No injuries have been reported.

At 12:24 a.m, Thursday, Jan.21, LAFD reported that it took 111 firefighters 3 hours and 43 minutes to extinguish the stubborn flames within the structure that was built in 1968. The last tenant reportedly departed in late 2018. The building has experienced significant structural compromise due to the blaze. Nearby structures were protected from harm. LAFD RS3 robotic firefighting vehicle is at the location and will remain on standby as a LAFD Excavator commences teardown of a dangerously unstable exterior wall. Crews will remain at the location overnight and are expected to be joined at daylight by a LAFD Urban Search and Rescue unit for a thorough secondary search of the premises. Department of Building and Safety will be on location to inspect the premises.

The cause of the fire is under investigation.

Keith Johnson Photojournalist, Key News Network