A Fond du Lac County man was seriously injured when a large tree limb fell on him. Rescue personnel were called to the scene Saturday afternoon at N7649 County Highway C for a report of a man pinned under a tree. The Sheriff’s Office says a 39 year old Eldorado man was cutting a tree down when his chainsaw got stuck. When he attempted to unjam the chainsaw, a large portion of the tree broke off and fell onto the man. He was transported to Theda Clark Medical Center by Flight for Life with serious injuries. Assisting at the scene were; North Fond du Lac Ambulance, North Fond du lac Fire Department and Town of Eldorado Fire Department.