Theme park visitors are stuck on rides because of a power cut at Chessington World of Adventures.
The Surrey attraction said a power cut in the local area had “impacted operation” on Friday afternoon and evacuations had been carried out on rides that were at a high level.
Visitors took to Twitter to say people were being rescued.
A spokeswoman for the theme park confirmed people had been helped down from rides.
She said: “We got all our guests down within half an hour.”
One visitor tweeted that people were being rescued and added: “I’m never going to a theme park again.”
The theme park said staff were trained to carry out “high-level evacuations”.
Every ride has a platform next to it, so all guests would have been helped to a platform and then would have been able to walk down stairs, the spokeswoman said.