The three people injured -- Carrol Knutson, of Birchwood, Minn., John Ellis, of South Connellsville, Pa., and Jose Pruneda, of Alliance, Neb. -- were watching the shootout Friday when they were injured by the guns in the simulation, the Rapid City Journal reported. All three were taken to Rapid City Regional Hospital for treatment.
Hill City brings in volunteer cowboys from Rapid City to do the shootout performance with blank bullets in the streets of the city, with proceeds going to Children's Miracle Network.
"They've been doing it for years," Brenda Nolting, president of the Hill City Area Chamber of Commerce, told the newspaper, adding, "There won't be another shootout. In my mind, it's done for good. This just cannot happen."
Lt. Marty Graves of the Pennington County Sheriff's office told KOTA-TV the investigation is ongoing, and it is still unclear whether live ammunition or blanks were used.
Two of the injured remain hospitalized in fair condition, while one has been released.
Reindeer recovered after escaping from Santa during lighting ceremony
Exploding whale video goes viral on Internet