Update at 11:25 AM on 6/19/2026: The Shelter-in-Place Order is now LIFTED for zone 1279-A in Boyle Heights. A Smoke Advisory remains in effect for LA City Genasys zones 1239, 1241, 1279A, 1279B, and 1281. Although smoke in the area has decreased, individuals with sensitivity to smoke should continue to monitor AQMD Air Quality alerts (AQMD.gov) and avoid unnecessary exposure to outdoor air.

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Update at 5:37 PM on 6/18/2026: Personnel have been working for several hours to ventilate the structure in order to create a safer environment for firefighters engaged in suppression efforts. Additional fire companies are en route to scene following the discovery of a pocket of fire in a freezer container in the commercial structure. Residents under the Shelter In Place order should stay inside, close doors and windows, and use A/C or air filters.

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Update at 2:39 PM on 6/18/2026: LAFD will soon be undertaking ventilation measures to evacuate hazardous smoke from 1400 S Los Palos St. Residents in Genasys zone 1279 EAST OF LORENA ST are ordered to SHELTER IN PLACE. Residents in Genasys zones 1281, 1239, 1241, and 1279 WEST OF LORENA are advised that they may see smoke in the area.

BOYLE HEIGHTS - On June 17, 2026, Los Angeles Fire Department crews responded to a fire at a large single-story commercial building at 1400 S Los Palos Street, following an alarm at 2:35 PM.

Upon arrival, firefighters found fire visible from the roof of the 1,000' x 500' structure. Crews initially engaged in offensive suppression; however, approximately 15 minutes into the operation, a suspected ammonia leak prompted Incident Command to order a defensive posture. LAFD personnel worked to locate and mitigate the source while suppression continued.

As a precaution, the fire building and adjacent businesses were evacuated in the early stages of the incident. A shelter-in-place order was issued for the immediate area, with advisories extended to surrounding areas to the north and east. Incident Command has since lifted all orders and advisories, and residents and employees may safely return. No further evacuations or shelter-in-place orders are anticipated. Air and water quality monitoring will continue during all further operations on scene.

The sheer size of this structure (identified as a cold-storage facility) largely prevented effective ground access, necessitating an unconventional approach. Though not typically deployed in structure fires due to safety concerns, LAFD helicopters performed water drops to knock down the bulk of the flames. 

While the fire was largely under control within six hours, extended suppression and overhaul operations are expected. LAFD fire companies, hazmat specialists, drone pilots, and USAR teams are coordinating scene management with partner agencies including LAPD, CHP, LADOT, LADWP, LADBS, the local gas company, and Los Angeles County Health Hazmat.