A traffic collision was reported on westbound Interstate 10 near Mountain Avenue in Rancho Cucamonga, California, shortly before 1 a.m. on Sept. 18, 2026. An ambulance was listed as en route following the crash.
The incident was recorded at the I-10 and Mountain Avenue interchange. The available California Highway Patrol information does not identify the vehicles involved or provide additional details about any injuries.
By 1:17 a.m., CHP reported that all westbound lanes were open. The vehicles or other involved items had been moved to the right shoulder, according to the update.
The later dispatch entry indicated that the collision was no longer blocking traffic lanes. CHP provided no further details about the circumstances of the crash in the available information.
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