St. Louis ( KSDK ) -- Thousands of motorcycle enthusiasts, many of them self-proclaimed "stunt" riders, amassed on the St. Louis riverfront Sunday afternoon.
It's all part of the "Ride of the Century" weekend, an annual event which draws bikers from all over the country for two days of highway riding and stunt demonstrations.
The main event was a gathering along the Mississippi River floodwall just south of the Gateway Arch. Riders were met there by police officers who checked the bikes for proper registration and safety violations.
NewsChannel 5 was there as some riders were arrested for unspecified violations.
So far this weekend, one rider has been killed after colliding with a city of St. Louis police vehicle, and another was killed in St. Charles County after police say he violated a stop sign and struck a car.