The United Nations Security Council has unanimously adopted a Russian resolution demanding immediate cooperation from Angola's UNITA rebel movement, in the search for a missing UN plane.

The aircraft, with fourteen people on board, crashed last Saturday in the central highlands, where fighting has been taking place for four weeks.

The resolution deplores the lack of cooperation from UNITA and the Angolan government in efforts to rescue the survivors.

As the meeting got underway, the Angolan authorities said they were willing to offer the UN any help they could.