Palau Pioneers 'Shark Sanctuary'
The President of the tiny Pacific republic, Johnson Toribiong, will announce the ban during Friday's session of the UN General Assembly.
With half of the world's oceanic sharks at risk of extinction, conservationists regard the move as "game-changing". It will protect about 600,000 sq km (230,000 sq miles) of ocean, an area about the size of France.
President Toribiong will also call for a global ban on shark-finning, the practice of removing the fins at sea.
By Richard Black
Environment correspondent, BBC News website

