Fireworks over the Olympic park
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Sochi 2014: Spectacular ceremony launches 22nd Winter Olympics

7 February 2014 Last updated at 23:12 GMT

The 22nd Winter Olympics are officially underway after an opening ceremony in the Russian resort of Sochi which combined spectacular effects with the usual questionable team outfits.

They are the most expensive Olympic Games ever. Building the infrastructure from scratch, as well as intensive security measures, is estimated to have cost more than 30 billion pounds.

Three thousand athletes from 88 countries are set to take part. Another 700 will compete in the Paralympic Games next month.

David Bond reports.