Russia Plants Flag at North Pole Seabed

Graphic map of the Arctic, showing the route taken by a Russian expedition. Their Russian mini-submarine has reached the bottom of the Arctic Ocean under the North Pole in a mission to back up Moscow's claims to the region's mineral riches.
The expedition comes as several countries try to extend their rights over over sections of the Arctic Ocean floor.
Both Norway and Denmark are carrying out surveys to this end and Canada has promised to increase the number of ice-breakers patrolling its sector.
US politicians, including Senator Richard Lugar, have urged defence of the country's Arctic interests to stand up to Russian claims over large stretches of the seabed.
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