A deadly freeway crash involving a big rig and a fiery blaze was reported early Tuesday on Interstate 805 (I-805) in San Diego, California, leaving at least one person dead and prompting major highway closures and an intensive emergency response.
Local authorities, including the California Highway Patrol (CHP) and San Diego fire crews, rushed to the scene after reports of a semi-truck engulfed in flames near Mission Valley on the southbound side of the freeway, close to the merge with Interstate 8.
A SigAlert was quickly issued as lanes were shut down and traffic came to a standstill. According to CHP and fire department officials, the incident was first reported shortly after 6 a.m. PT, when a big rig was seen on fire and blocking all southbound lanes of I-805 just south of Friars Road.
Firefighters worked to extinguish the blaze, but the fire was intense enough that the entire section of freeway had to be closed for hours for safety and investigation purposes. The CHP advised motorists to use alternate routes, such as State Route 163, as traffic backed up for miles in the early morning commute.
At least one person was confirmed dead in the crash, though authorities have not yet released the identity of the victim or specific details about who was involved — whether the fatality was the driver of the big rig or occupants of another vehicle.
Emergency responders also attended to other persons at the scene, but information about injuries beyond the one reported death has not been officially detailed as of this writing.
News outlets covering the story say the collision and resulting fire drew a significant emergency response from multiple agencies due to both the severity of the blaze and its impact on a major commuter route.
Investigators are working to determine the chain of events that led to the crash and subsequent fire. It remains unclear whether weather conditions, mechanical failure, driver error, or another vehicle’s involvement played a role.
Officials typically examine factors such as brake performance, cargo load, and road surface conditions — especially in busy urban freeway interchanges like Mission Valley, where heavy truck traffic and commuter vehicles frequently mix. Formal statements and a full CHP collision report are expected later once investigators complete their initial work.
The crash has had a substantial effect on morning traffic, with delays lasting for hours and commuters urged to seek alternate routes wherever possible. Residents and drivers in the area are also being reminded by authorities to heed road closure signs and avoid slowing down near the scene, as such behavior can dangerously impede emergency operations and lead to secondary collisions.
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