A worker at a theme park has suffered leg injuries while working on a ride.
The man was injured at the Flamingo Land Resort in North Yorkshire at about 13:20 BST.
He was airlifted to hospital for further treatment, but his injuries were not believed to be life-threatening.
Flamingo Land Resort has been approached for comment and the Health and Safety Executive has been informed.
The theme park was open to the public at the time and Ashleigh Logan, who was queuing for a ride, said she saw an air ambulance flying overhead.
"There was an ambulance earlier but that seems to have gone now, there is now a random tent and a lot of police around the dino rollercoaster," she added.
The Health and Safety Executive confirmed it had been notified and said it was making "initial enquiries".
Flamingo Land Resort was first established as a zoo in 1959.
It now covers 375 acres and includes a zoo, holiday village and theme park including one of Europe's tallest vertical drop rides.