Daniel Sandford on the platform
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The BBC takes a tour of Gazprom's remote arctic oil rig

7 October 2013 Last updated at 10:18 BST

The BBC's Daniel Sandford reports from onboard the Prirazlomnaya oil platform which was targeted by Greenpeace activists.

30 people have been charged with piracy after attempting to board the Gazprom oil rig last month.