On September 25th at approximately 9:20 pm Riverside City Fire dispatched Engines 1 and 4 with AMR to a traffic Collision with injuries on the 91 freeway eastbound at Spruce. Shortly after arrival, Engine 1 reported two patients and requested an additional AMR unit. Because the accident spanned both sides of the freeway, CHP shut down all traffic eastbound after Mission Inn for about 10 minutes. Once all vehicles were cleared to the right side, traffic resumed. Of the six cars involved, only two people were transported with minor injuries.