US Secretary of State John Kerry was due back in Vienna for a fresh push with his Iranian counterpart to jumpstart stalled talks over Tehran's nuclear programme.
With the global tablet computer market showing signs of cooling, Apple's expected unveiling of its new iPads looks to shore up its position at the high end.
Twelve adults and five children suspected of child sex crimes and human trafficking have been arrested in Colombia in a joint operation with the United States.
US Secretary of State John Kerry said Russian troops were beginning to pull back from Ukraine but warned Moscow still needed to do more to see sanctions eased.
US Secretary of State John Kerry was meeting Egyptian President Abdel Fattah al-Sisi to press the former military leader to adopt greater democratic reforms.
John Kerry called for a resumption of Israeli-Palestinian peace talks, saying both sides had to be helped to make "tough choices" for lasting stability.
The White House said it aimed to work with US lawmakers towards closing Guantanamo and was not "drafting options" for circumventing a congressional ban.