A traffic collision was reported on westbound State Route 60 just west of North Diamond Bar Boulevard in California at about 10:14 p.m. Monday, September 14, 2026. The California Highway Patrol classified the incident as a collision with unknown injuries.
The crash location was on the westbound side of the freeway near the Diamond Bar Boulevard interchange. CHP dispatch information did not specify the number or types of vehicles involved.
A later CHP update, issued at about 10:36 p.m., stated that the vehicles were off the freeway near Grand Avenue and the State Route 60 junction. The update indicated that the vehicles were no longer blocking the primary roadway.
CHP records did not provide additional information about injuries, emergency medical treatment, damage or the circumstances leading to the collision. No further roadway impact was documented in the available dispatch updates.
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