The Russian Government has approved an ambitious plan to build a 65 mile-long undersea rail tunnel under the Bering Strait to connect Russia and the US at a cost of $100bn.

The Bering Strait high-speed rail tunnel was first proposed in 2007, and could connect the far east of Russia with Alaska, linking Uelen on the Russian side with Nome on the Alaskan side.

The tunnel project would form part of a transport corridor linking Europe and America through Siberia and Alaska.

The proposed tunnel will have provision to lay a fibreoptic cable for communications and energy links, and when complete the tunnel would make it possible for passengers to travel all the way from London to New York.

Engineers of the project also claim that the tunnel could carry 3% of global freight.