(Watch the clip below, but be warned that some viewers may find it disturbing.)
In the video, the boy approaches the machine with a ball and appears to get snagged on the conveyor belt as it passes under the walking platform. The belt drags the boy beneath the machine, and at one point his head is sharply forced back as the roller continues to pull him under.
He eventually is able to escape.
The incident was one of 39 described by the U.S. Consumer Product Safety Commission, which urged parents of children at home to “stop using the product immediately.” One child died, as reported by Peloton, the commission said.