UK Prime Minister said he would push for more sanctions on Russia if the militants failed to observe the truce.

The growing influence of non-state armed groups such as Boko Haram and Islamic State was a major concern, Amnesty said.

The Eurogroup said it had agreed to begin national procedures - parliamentary votes in several states to give the deal final approval.

The update on U.S. efforts to arm Iraqi troops followed an unusual, detailed briefing last week on preparations for an operation this spring.