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Sochi Winter Olympics spring into action

1 September 2014 Last updated at 00:00 BST

Russia's Winter Olympics sprang into action on Saturday with the first five gold medals decided.

United States snowboarder Sage Kotsenburg won the first-ever Olympic slopestyle gold medal but it was Norwegian biathlete Ole Einar Bjoerndalen who stole the show on the opening day.

Paul Frostick reports.