Two horses pulling a wagon at Bellevue, Iowa's Heritage Day Celebration Parade went out of control, running into crowds and injuring dozens. A total of 24 people were taken to area hospitals, five in critical condition and five in severe condition. The injured range in age from 2 to 62 years old, and according to local authorities more than half the injured are younger than 12. "I am especially saddened because the accident occurred during the events celebrating Independence Day, which is a day that should be filled with pride and joy for all Iowans and Americans," said Iowa Gov. Chet Culver in a statement.