At approximately 3:00 am, Corona Fire Department responded to a multiple vehicle collision on the SR-91 Eastbound near the SR-71. When crews arrived on scene, they located at least seven vehicles involved, with at least one rolled over. According to reporting parties, the driver responsible for the collision attempted to pass traffic in a construction zone using the center divider when he overturned. The driver is suspected to have been under the influence of alcohol. Multiple ambulances were requested and multiple patients were transported to local hospitals in unknown condition. CHP requested a hard closure of the SR-91 eastbound while the investigation and clearing of the roadway was underway. CHP is handling the investigation.