The children were on the Wave Swinger at the Canadian National Exhibition in Toronto, Ontario.
The Wave Swinger is a circular ride with 48 swing-style seats attached by metal chains to a dome. One person sits in each harness and is secured by a bar across the lap. As the ride begins, the swings move in a circular motion, and the center rises up as the swings pick up speed.
"I thought the whole thing was going to blow. I've never been that scared," says Sayland Green, 12, as she was being examined by paramedics. "It was a horror show."
"We're not sure what happened. There was a malfunction, and the chairs dropped to the platform," says Alfie Phillips, president of Conklin Shows, the company which owns the midway.
"We have an excellent safety record, but these things happen," Phillips says.
The Toronto accident comes after a rash of recent accidents at amusement parks in the United States that killed four people. In August, a disabled 12-year-old boy died on a ride in California. A day later, a man fell from a stand-up roller coaster in Virginia. Last week, 20 people had to be rescued from a roller coaster in California when it stalled.
The Paramount Canada's Wonderland amusement park near Toronto has shut down
5. Whom or what has the Paramount Canada's Wonderland amusement park near Toronto shut down until safety inspectors complete their investigation?