RedactedNarrative: On 06-06-15 AT 1331HRS, an injury watercraft accident occurred on the Colorado river (Arizona side) in the 900blk of Riverfront Drive BHC AZ. The watercrafts involved were personal watercrafts. PWC # 1 struck PWC # 2 from behind. Two occupants on PWC # 2 reported injuries to their backs and rib cage areas on the leftside of their bodies. Both injured were treated by the paramedics and then drove themselves to the local hospital.