A 25-year-old man was seriously injured in a fall at a farm site in Renville County Monday morning. The incident was reported at just before 9:30am from a farm about 4 miles south of Olivia on 350th Street in Norfolk Township. Authorities say that the man had apparently been working on top of a newly constructed building when he fell through an open section of the roof to the concrete approximately 30 feet below. He was flown to the Sioux Falls hospital with serious injuries. His name has not been released. The incident is being investigated by the Renville County Sheriff’s Office.