Oregon amusement park guests were left hanging upside down when a ride malfunctioned Friday.
Portland Fire and Rescue announced in a X post that they were called to the scene of Oaks Park after the "AtmosFEAR" ride, a spinning pendulum-style ride, malfunctioned on Friday evening.
The ride malfunction came on the park's first day of opening for the summer.
Officials said that approximately 30 people were stuck upside-down until help arrived.
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At least 30 people were trapped on a ride at Oaks Amusement Park in Portland, Oregon. (Portland Fire & Rescue via X)
Park engineers, alongside fire officials, worked together to "manually lower" the topsy-turvy ride, the department said.
A spokesperson for the Fire Bureau said the riders were being evacuated and medically evaluated.
"The ride has been manually lowered, and all riders are now being evacuated and medically evaluated," officials said.
The malfunction came on the park's first day of opening for the summer season. (Portland Fire & Rescue via X)
Fire officials said earlier they did not believe anyone was seriously injured. The cause of the malfunction is unknown at this time.
Oaks Park officials did not immediately respond to Fox News Digital's request for comment.
Officials at the scene say the passengers were "stuck upside down" on the AtmosFEAR ride. (Portland Fire & Rescue via X)
Oak's Park is Oregon’s oldest existing amusement park and is just 3.5 miles from downtown Portland.
The small park first opened two days before the Lewis and Clark Centennial Exposition on May 30, 1905, and is one of the country's oldest continually operating amusement parks in the country.