LAKE BUENA VISTA, Fla. – A 4-year-old boy died after a spin on a Walt Disney World spaceship ride so intense that some riders have been taken to the hospital with chest pain.

Daudi Bamuwamye lost consciousness Monday aboard “Mission: Space,” which spins riders in a giant centrifuge that subjects them to twice the normal force of gravity. The boy’s mother carried him off the ride, and paramedics and a theme park worker tried to revive him, but he died at a hospital.

An autopsy Tuesday showed no trauma. Further tests will be conducted and a cause of death may not be known for several weeks, and official said.

The sheriff’s office said the boy met the minimum 44-inch height requirement for the ride. The $100 million ride, one of Disney World’s most popular, was closed after the death but reopened Tuesday after company engineers concluded that it was operating normally.