In a local park in Volgograd, 36 people were left hanging on the region's tallest attraction.
As a result of the power surge, people were trapped at a height.
Rescuers had to evacuate two people using a boom lift, the Russian Emergencies Ministry Telegram channel reports.
The rest of the people were able to get off the ride in the normal manner, the report emphasizes.
The incident occurred at the Seventh Heaven attraction in the Central Park of Culture and Leisure.
Sources report that the height of the attraction could reach 30 meters.
The park administration explained the incident as a power surge.
Rescuers, park administration and a representative of the Chinese manufacturer Beston were working at the scene.
It is reported that there was no threat to the lives and health of citizens.
