A Saturday morning two-car wreck in Morgan County prompted a Staff for Life helicopter response. Erin Nies, 28, of Latham, Mo. was driving a 1998 Mercury on Highway 5 near Route HH when she failed to yield to a 2009 Jeep driven by Jenna Mortenson, 28, of Jefferson City. Nies and Mortenson received moderate injuries and were transported to University Hospital in Columbia by ambulance. But Nies' passenger, 28-year-old Kelly North, also of Latham, Mo., sustained serious injuries, as did Mortenson's passenger, Marilyn Mortenson, 48, of Tipton, Mo. North and Mortenson were transported via helicopter to University Hospital. According to the Missouri State Highway Patrol Report, Mortenson and Mortenson were wearing seat belts, Nies and North were not.