A Kirksville woman was seriously injured in an accident in Macon County Sunday afternoon. The State Highway Patrol says 23-year-old Sara Plank’s car went off the right side of westbound Highway 156, about three-and-a-half miles west of La Plata, around 3:30. The car returned to the road, she overcorrected. It went off the left side of the road and overturned, ejecting her. She was flown to Columbia.