Turkey is facing mounting pressure to open its border to the tens of thousands of Syrians, as pro-government forces push on with their offensive in the northern Aleppo province.
The United Arab Emirates has joined Saudi Arabia in saying it would consider sending ground troops to Syria to battle the Islamic State group, raising the possibility of even greater foreign involvement in the war.
Turkey says up to 35,000 Syrians have massed along the border, which remained closed for a third day on Sunday. The governor of the Turkish border province of Kilis said Turkey would provide aid to the displaced within Syria, but would only open the gates in the event of an "extraordinary crisis."
