BBC: The US and Russia are among five countries to have signed a deal to prevent commercial fishing in the melting Arctic sea ice near the North Pole.
Norway, Canada and Denmark also backed the agreement signed in Oslo.
Although the central Arctic is unlikely to have fish stocks for some time, scientists believe they will arrive as thinning ice melts in the summer.
Several neighbouring nations have submitted claims to Arctic territory.
A 21-member UN arbitration panel is considering the competing...