Three people have been injured after a tractor crashed into another float at the Darlington Canoe Festival’s parade in southwest Wisconsin. Police say 39-year-old Richard Corley of Darlington had just started the tractor at the beginning of the parade on Sunday afternoon — and he didn’t know it was in gear as it rolled into him as he was standing close by. Officials say the tractor also hit 69-year-old Robert Schmid, who was taken to a Darlington hospital and later flown to a Madison hospital with serious injuries — and the tractor then struck a float, injuring a 64-year-old rider on that unit. Corley and the float rider were sent to the Darlington hospital for treatment.