Timeline: How the Smiler crash happened
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Alton Towers sentencing: How the Smiler crash happened

CCTV footage from Alton Towers shows events leading up to the Smiler crash last year.

Sixteen people were injured in the crash, with two teenage girls needing leg amputations.

The Staffordshire theme park's operator Merlin Entertainments has been fined £5m for the crash on the rollercoaster.

Stafford Crown Court heard on Monday how engineers failed to notice a carriage that had stopped midway around the 14-loop ride.

  • 27 Sep 2016