A Canadian amusement park ride turned into nightmare fuel after stopping suddenly, suspending passengers upside down, 75 feet above the ground, for nearly 30 minutes. The lumberjack ride, located at Canada's Wonderland theme park in Vaughan, Ontario, contains two hydraulic arms, shaped like axes, which swing back and forth, occasionally propelling themselves into full 360-degree swings. Both of those axes stopped moving at 10:40 p.m. (local time), according to a statement from the Park. A Wonderland spokesperson did not disclose the cause of the ride's abrupt stop, but did say that the maintenance team was able to respond quickly. All passengers were back on the ground by 11:05 p.m., the park said. Two people were treated for chest pain before being released. Theme park crowds watched as the rescue unfolded, capturing the dangling passengers crying for help in videos shared on social media. It’s unclear how many people were on the ride. Some of the passengers were seated face-to-face with strangers, a design choice that "let guests interact with one another and watch the terror on their friends' faces as they loop round and round," according to the Wonderland website. Those aboard the ride were panicked, rider Spencer Parkhouse told CBC News. The incident is the latest in a string of roller coaster malfunctions that have made national headlines in the last few months.