This represents some 385,000 square miles of seabed in the Pacific, Atlantic, Bering Sea and Arctic Ocean ... definition of the shelf's edge.) Deep-sea mining is one reason to expand the claim ...

It is the third major air incident to have taken place in the US over the last 10 days.

The bodies of all 10 people who died in a crash of a Bering Air caravan in Alaska on Thursday have been recovered from the wreckage, authorities said.