SeaWorld San Diego rollercoaster
The Tidal Twister coaster prior to its 2019 opening. Photo credit: Courtesy, SeaWorld Entertainment via PR Newswire

A mechanical failure left several people stuck on a rollercoaster at SeaWorld San Diego Friday until emergency crews could safely rescue them.

The non-injury mishap on the Tidal Twister attraction at the Mission Bay theme park occurred about 4 p.m., SeaWorld spokesperson Tracy Spahr said.

Firefighters had 30 stranded passengers off the thrill ride shortly after 5 p.m., according to a tweet by the San Diego Fire-Rescue Department.

SeaWorld was working to determine the cause of the malfunction.

The park launched Tidal Twister, a horizontal, figure-8, dueling coaster, the first of its kind, in May 2019.

– Wire and staff reports