"Russia is sending a mini-submarine to explore the ocean floor below the North Pole and find evidence to support its claims to Arctic territory."

The team aboard the mini-submarine Mir is expected to carry out scientific experiments and measurements on the sea bed.

Reports say it will also leave behind a Russian flag and a capsule with a message for future generations.

"The Arctic is ours and we should demonstrate our presence," Mr Chilingarov told Russian TV.

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