A man who was riding a rollercoaster at Universal’s Epic Universe in Orlando died Wednesday, park officials said in a statement.

The visitor at Universal’s Epic Universe theme park became unresponsive while riding Stardust Racers at the Florida park, a Universal spokesperson said in the statement.  The Orange County Sheriff’s Office said off-duty deputies found a man in his 30s on the ride Wednesday night. He was then taken to the hospital, where he was pronounced dead. The man hasn’t been identified, and there is no known cause of death yet. The District Nine Medical Examiner’s Office said the person’s body was in their care and will undergo an examination today.

Universal Orlando Resorts in a statement: “We are devastated by this event and extend our sincerest sympathies to the guest’s loved ones. We are fully committed to cooperating with this ongoing investigation.”

Universal’s Epic Universe opened in May; as a precaution, Stardust Racers will remain closed while the investigation by the Orange County Sheriff’s Office is underway. The sheriff’s office has not commented on the investigation.

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