Obama in talks with Turkey's leader
The unrest in Syria and Egypt have been discussed by President Barack Obama and Turkey's prime minister, Recep Tayyip Erdogan.
On Wednesday, the two leaders discussed foreign extremists fighting in Syria and the need for the opposition fighting President Bashar Assad to be unified and inclusive.
Violence from Syria's two-year civil war has been spilling over into Turkey, and the country is also concerned that Syrian Kurds seeking more power could embolden autonomy-seeking Kurdish rebels in Turkey.
Mr Obama and Mr Erdogan also discussed Egypt and the need for a return to democracy. Both countries have been worried that violence and unrest there could destabilise other parts of the region.
The White House says Mr Erdogan requested the conversation, which took place while Mr Obama was travelling in California.