Riders injured in Scottish theme park rollercoaster crash

  Ten people reportedly remain in hospital after the ride derailed at the M&D's park near Strathclyde Park, Motherwell, on Sunday.   Three of the children were said to be in a serious condition, the BBC reported.   The park's owners said the company was co-operating with a joint police and Heath and Safety Executive investigation.   A statement on the M&D's website said the theme park was "closed until further notice" due to a "serious incident” involving the Tsunami rollercoaster.   Witnesses said people were trapped upside down on the ride when it crashed yesterday afternoon.   A spokesman for the theme park's operators M&D's said: "As a family-run business, our thoughts are with those who have been injured and their families.   "We wish everyone a full recovery. We are co-operating fully with Police Scotland and the Health and Safety Executive on their joint investigation to ascertain the cause of the accident."