State investigators are investigating a ride malfunction at Knott’s Berry Farm that left nearly two dozen thrill seekers stuck in the air for more than two hours when a six-story thrill ride suddenly stopped.

The California Division of Occupational Safety and Health is investigating the ride malfunction at Knott’s Berry Farm, according to the California Department of Industrial Relations.

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According to Knott’s Berry Farm officials, the Sol Spin ride experienced technical problems and was stopped mid-loop with 22 riders on board on Monday, Nov. 18.

All drivers were safely evacuated 2 1/2 hours later.

According to Knott’s officials, two cyclists who were transported to the hospital for further evaluation out of an abundance of caution were treated and released without admission.

Sol Spin will undergo review before reopening, according to Knott’s officials. According to park officials, Knott’s maintenance crew is currently working to determine the cause of technical difficulties at Sol Spin. The ride’s reopening date has not been announced.

The 20-meter-long Sol Spin ride, manufactured by Netherlands-based Mondial Rides, opened at the Buena Park theme park in 2017.

The ride rotates in three directions, causing riders to flip their heads while their gondola spins like a propeller blade and a support arm spins like the second hand of a clock.

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Sol Spin riders sit in freely rotating gondolas attached to a counterclockwise rotating arm, creating an oval arc in the air. Floorless coaster-like seats with over-the-shoulder restraints allow riders to swing their feet and arms as centrifugal force causes the gondolas to rock back and forth.

Knott’s gives Sol Spin its highest level of excitement rating.