A Japanese roller coaster has been shut down after riders reported suffering broken bones.
The Do-Dodonpa is the world’s fastest-accelerating roller coaster, and it lives in the amusement park Fuji Q Highland. However, it was recently closed “due to a safety overhaul,” the Daily News reports.
That safety overhaul resulted from several people reporting that they were injured after going on the ride. Some of the injuries include fractured and broken bones. The ride was built in 2001, and then it was modified in 2017 to give it its 112 mph speed.
The men and women who reported the injuries were all between the ages of 30 and 50. Some say they experienced a cervical fracture and a thoracic spine fracture. So far, six riders have submitted complaints about being harmed.
While an investigation launched by Fuji-Q Highland ended with no technical issues being found, experts say the speed and force of the ride or how the riders were sitting could have caused the injuries.
“The causal relationship between the injuries of passengers and the amusement machine produced by our group company is not confirmed, and we have to wait for the investigation by Yamanashi Prefecture and (the) Ministry of Land, Infrastructure, Transport and Tourism,” Sansei Technologies, the company that built the roller coaster, said in a statement.
