Youth WoundedSTAPLES, Minn. (AP)—One Wadena youth suffered a minor gunshot wound and three Staples area vocational school students were held following an altercation near Staples Tuesday night.Treated at a Wadena hospital for a forearm wound was Leonard Lowers Jr. of Wadena. Three were being held by Todd County authorities at Long Prairie. No charges had beenfiled.Authorities said two groups one from Wadena and the other from Staples, got into an argument in a Staples cafe, left in two cars and later collided near Staples and then got out and started argument.One man fired three shots from a small caliber pistol, police said. One bullet struck Lowers.