Three St. Louis residents were injured in a one vehicle accident Sunday afternoon in Cooper County. The highway patrol reports that 20-year-old Brittany McCartney was driving westbound on I-70 when she travelled off the roadway. McCartney overcorrected, sending the vehicle off the road again where it struck a rock bluff before coming to rest. McCartney and passenger 20-year-old Mia Divine suffered moderate injuries, another passenger, 19-yuear-old Trelesia Ward suffered minor injuries. All three woman were transported to Cooper County Hospital for treatment.