Rescuers have unloaded twelve people who were stuck on a Superman roller coaster at Six Flags Discovery Kingdom in Vallejo, Calif. after the ride stalled, a park spokesperson reports.
Witnesses said the ride stopped at the highest point around 2:30 p.m.
According to KTVU.com, the Superman ride was checked Sunday morning and no problems were found.
"The ride will be closed for a thorough safety inspection and will reopen when the inspection is complete," Nancy Chan, the Six Flags Discovery Kingdom spokesperson, said in a press release.
The Superman ride opened June 30 and is 15 stories tall at its highest point and reaches speeds of 62 mph.
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