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POMONA, Los Angeles County, Calif., Nov. 11, 2026 — Four vehicles collided early Tuesday morning, November 10, on westbound Interstate 10 near Kellogg Drive in Pomona, according to the California Highway Patrol. The crash blocked multiple lanes of the freeway during the morning commute.
The California Highway Patrol's traffic log shows the collision was first reported just before 6 a.m. west of Kellogg Drive, with a gray Toyota Corolla reportedly involved with two pickup trucks. Units later logged a gray Toyota Tacoma and a white pickup truck stopped in the center divider, along with a gray Ford Bronco and a gray Toyota hatchback on the right shoulder. Dispatch notes indicate the wreckage blocked the number 1 and 2 lanes as well as the HOV lanes, and a fourth vehicle was reported blocking the number 4 lane.
Los Angeles County Fire Department personnel responded to the scene, and the California Highway Patrol's log was updated to reflect injuries, changing the call from a non-injury collision to one with at least one patient awaiting transport. The extent of any injuries has not been released. Caltrans Freeway Service Patrol crews were also sent to assist with traffic control before the incident was marked closed shortly after 6 a.m.
No further details on what led to the crash have been made public, and the California Highway Patrol has not said whether speed or any other factor played a role. The investigation remains active.
We wish those injured a full recovery.
Intersection Crashes in California
This multi-vehicle crash happened at Interstate 10 and Kellogg Drive in Pomona, California. We follow crashes at intersections across California, and our California intersections page brings that information together in one place.
Frequently Asked Questions
Are crashes more likely to happen after an initial collision blocks a freeway?
Yes. When lanes stay blocked, approaching traffic usually has little time to react, and secondary collisions can occur before responders finish clearing the scene.
Why are multi-vehicle crashes difficult to investigate?
With several vehicles and drivers involved, investigators have to piece together the order of impacts, which can take longer than a two-vehicle crash and may require surveillance or dashcam footage.
What typically causes pile-ups involving several vehicles?
Common factors include sudden braking, reduced visibility, following too closely, and one vehicle stopping or slowing that others behind it cannot avoid in time.
Why do chain-reaction crashes happen on freeways like this one?
Heavy early-morning traffic moving at highway speed leaves less room to stop safely once one vehicle brakes hard or stalls, which can trigger a chain of impacts behind it.
