Rollercoaster derails at Scottish theme park leaving at least 11 injured

Eleven people including nine children were injured Sunday when a rollercoaster crashed at a theme park in Scotland, police and media reports said.

Images posted on social media showed a mangled carriage and a number of people trapped upside down in their seats in the Tsunami ride at M&D's amusement park near Glasgow.

The ride had been full when it derailed, according to eyewitnesses at the park, which was evacuated after the accident according to its website.

"Kids and adults are still on it upside down," said Katie Burns, who had just ridden the rollercoaster and was walking past it when the crash occurred.

"It's like something out a horror film, children crying and everything," she wrote on Facebook.

Lanarkshire Police said in a statement: "At this time we are aware of 11 casualties - two adults and nine children, who are all being treated at local hospitals."

Six ambulance crews, a specialist operation team and emergency doctors were dispatched to the scene, said a spokesman for the Scottish Ambulance Service.