A Leeton teenager was seriously injured when troopers say he lost control of his vehicle on a Johnson County roadway the afternoon of Wednesday, July 29. The Missouri State Highway Patrol responded to the crash along SE 301st Road, two miles north of Leeton, around 6:10 p.m. Troopers report that the 16-year-old was driving north when he lost control as he crested a hill. The vehicle went off the right side of the roadway and struck a mailbox. Troopers add that he had not been wearing his seat belt at the time of the crash.