A crash reportedly involving three big rigs and an unknown number of cars has injured at least one person and is causing heavy traffic on the westbound 60 Freeway in Rowland Heights.
The crash was reported to the California Highway Patrol at 10:43 a.m. just east of Fairway Drive.
The big rigs and a bobtail truck collided in one of the No. 3 slow lane. Officers were trying to clean up the wreckage at 11:20 a.m., according to CHP reports.
One witness reported to Diamond Bar-Walnut Patch that at least one person was being transported by ambulance to treatment.
This incident will be updated as details become available.