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Diamond Bar, CA (July 24, 2026) – Five vehicles were involved in a collision on Wednesday afternoon, July 22, on eastbound SR 60 near Fairway Drive in Diamond Bar.
The crash was reported at approximately 4:28 p.m. on SR 60, about a quarter mile west of Fairway Drive. Initial information indicated multiple vehicles were blocking lanes, including a black sedan, a van, and three additional vehicles. Later updates described several vehicles involved, including a Mazda, a Lexus SUV, a Chevrolet Tahoe, and a Toyota Camry.
The collision blocked lanes on the freeway and required towing assistance for at least one vehicle. All vehicles were later moved to the roadside, and the freeway incident was cleared. The extent of any injuries was not confirmed in the initial report.
The circumstances surrounding the crash remain under investigation. Further details about the people involved were not immediately available.
How Are Multi-Vehicle Freeway Crashes Investigated?
Multi-vehicle crashes on highways require investigators to review several pieces of information to understand how the vehicles became involved. Vehicle positions, damage patterns, roadway conditions, and driver statements can help establish the sequence of events. The order in which vehicles made contact may also be examined when several cars are involved.
Traffic flow, lane changes, and driver actions are common factors reviewed after these types of collisions. Freeway crashes can develop quickly because vehicles are traveling at higher speeds and have limited space to avoid hazards. A detailed review of available evidence can help provide a clearer explanation of how the crash occurred.
