A fire broke out at Alton Towers following a fireworks display at the theme park.
The Staffordshire attraction said the "small fire" happened in the display area, which was closed to the public.
"No staff or guests were at risk," it added. It is believed firework debris was the cause.
Two areas of the park - X-Sector and Dark Forest, which are home to the Smiler and Rita rollercoasters - did not reopen following the display.
"The park is open as normal today [Sunday] for the last day of our Ultimate Fireworks Spectacular," a spokeswoman for Alton Towers said.