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SAN DIEGO, San Diego County, Calif., Oct. 27, 2026 — A multi-vehicle crash closed all northbound lanes of Interstate 15 in San Diego early Monday morning, October 26, and left at least one person dead, according to the California Highway Patrol. The closure backed up traffic for much of the morning commute.
The crash was reported around 5:15 a.m. at northbound Interstate 15 and Clairemont Mesa, the CHP said. Officers diverted all northbound traffic onto the State Route 52 connector while they worked the scene, and drivers were able to rejoin Interstate 15 north of the crash site.
Congestion built through the morning as the closure stayed in place, the CHP reported. Commuters were urged to find other routes and expect delays in the area. By a 7 a.m. update, the agency said it expected all northbound lanes to reopen within the hour.
No further details, including the number of vehicles involved or what led to the crash, had been released. The CHP said the circumstances remain under investigation.
Our thoughts are with the family and loved ones of the person who died.
More on Crashes in San Diego, CA
The fatal crash was reported on Interstate 15 in San Diego. If you were involved in a crash in the city, our San Diego, CA accident reports page explains how to get a police report and what the latest local crash figures show.
Frequently Asked Questions
What typically causes a multi-vehicle pile-up?
These crashes often start with one vehicle slowing suddenly, a stall, or a single collision, then other drivers following too closely or reacting late add to the chain.
Why do chain-reaction crashes happen on freeways like I-15?
Heavy early-morning traffic, limited visibility, and high speeds give drivers less time to stop once something ahead goes wrong, so one incident can quickly pull in several more vehicles.
What to Do After a Multi-Vehicle Crash in San Diego, CA
If you're involved in or witness a highway pile-up, try to move to a safe spot off the traffic lanes if your vehicle is drivable, and call 911 right away. Even if you feel fine, ask to be checked by paramedics, since injuries like whiplash or internal bruising aren't always obvious right after a crash. Remember to get the names of other drivers involved and note any badge numbers from responding officers. Once you're safe, request a copy of the CHP report for your records, and keep track of any medical visits or vehicle repair estimates that follow.
