Seven people have been injured after a rollercoaster derailed and reportedly plunged 30ft to the ground in front of horrified onlookers at a Scottish theme park. Eyewitnesses claimed the carriage smashed into a toddlers' ride when it hit the ground at M&D’s theme park in Motherwell, near Glasgow, at around 3.40pm today. It is understood eight to ten people were on board the Tsunami ride at the time. Children are among those feared trapped in the wreckage, while a picture of a set of wheels on the ground suggest they had 'flown off' the carriage. Other images from the scene show the derailed carriage stuck upside down with legs of those trapped inside flailing in the air. It is unclear at this stage how serious the injuries are.