( CNN ) -- A motorized parachute crashed into a crowd at a Labor Day festival in Hooper , Utah , injuring at least six people , including children , authorities said . Spectators scatter as a motorized parachute plummets Monday in Hooper , Utah . The parachute was operated by a man and his son who were on the aircraft , but neither was injured when it dropped to the ground amid spectators . Scores of people had gathered Monday for what was to have been a candy drop from the motorized parachute , according to Lt. Lonnie Eskelson of the Weber County , Utah , Sheriff 's Department . Video from the incident showed the small craft in the air , approaching the crowd , when it quickly lost altitude and came down as spectators ran for safety . Spectator Damon Martin said the crowd was waiting for the scheduled candy drop when the wind picked up . Watch vehicle slam into crowd » . The motorized parachute `` gets just over the field , they start dropping the candy and all of a sudden he starts to descend real quick . He guns it to get it back up and goes straight down into the crowd , '' said Martin , who shot video of the incident . The crowd parted `` like the Red Sea , but they just could n't move fast enough , '' he said . Six people were taken to area hospitals , including two sisters , 4 and 5 years old , authorities said . The 5-year-old was being treated Monday night at Primary Children 's Medical Center in Salt Lake City , Utah , for a leg fracture , Eskelson said , while her sister was treated and released . A 3-year-old also was being treated at the center Monday night . The other injured spectators were treated and released , Eskelson said . CNN 's Amanda O'Donnell contributed to this report .
Crowd gathers at Labor Day festival in Utah , Hooper , awaiting candy drop . Man and his son operating motorized parachute lose control of aircraft . They descend rapidly toward crowd , which parts `` like the Red Sea Operators of parachute not hurt ; two on ground , including children , are injured .