A mother yesterday demanded stricter safety regulations after she claimed her daughter broke both her wrists on a 60mph rollercoaster.
Amelia Seiga, aged 12, suffered the double fractures after riding on the new Rita, Queen of Speed ride at Alton Towers theme park in Staffordshire, the mother said.
The rollercoaster accelerates from 0-60mph in 2.5 seconds and is advertised as " faster than a shuttle take-off". Jane Seiga, from Colwyn Bay, north Wales, said she was shocked by the extent of her daughter's injuries after the rollercoaster ride.
She said: "The force of the ride was so strong that it peeled her hands off the guard rail and bent her wrists back.
"When she came off the ride both her wrists had swollen up and she was in agony.
"It was awful, she was in so much pain."
Initially medics examined Amelia and diagnosed only sprains to both her wrists.
However, after the schoolgirl had spent more than a week in pain her mother demanded that doctors carry out an X-ray.
The results revealed that Amelia had fractured both wrists.
Mrs Seiga, a bookshop manager, said: "We were shocked to discover how bad her injuries were.
"As a mother I want to make sure this doesn't happen to anyone else.
"I want Alton Towers to raise the height restriction of the ride so children as young as Amelia are not allowed on it."
A full investigation was carried out by both Alton Towers and the Health and Safety Executive following the incident in April.
The ride was given the allclear but officials are monitoring it regularly.
A spokeswoman for Alton Towers said: "A full and thorough investigation of Rita, Queen of Speed was completed both internally by Alton Towers and externally by the Health and Safety Executive.
"The investigation concluded the ride is safe and no changes to the ride, height restrictions or operating procedures are deemed to be necessary."
A spokeswoman for the Health and Safety Executive said: "The Rita, Queen of Speed ride was found to comply with requirements of the design review.
"The ride had also been independently tested prior to going into service and had been issued with the necessary certification from the national ride examination body to enable the safe operation of the ride.
"A visual assessment of the ride and the passenger seating and safety device arrangements was made. This was followed with a dynamic assessment of the ride.
"No fault was found with the ride and there did not appear to be the mechanism in place to cause such an injury in the normal course of operation of the device. However, as it is a new ride, Alton Towers will continue to monitor it closely and will report any further incidents.
"In such instances, we would, of course, reopen our investigation."