President Recep Tayyip Erdogan said Thursday Turkey had back-up plans if the EU failed to keep its promise over visa-free travel for Turks to the passport-free Schengen zone.

Axar.az informs, Turkey and the EU signed a controversial deal in March, in which Ankara agreed to take back Syrian migrants landing on Greek islands in return for incentives including three billion euros ($3.1 billion) in funds and visa-free travel.

"If we do not get the expected outcome regarding the visa issue... if promises are not fulfilled, Turkey will no doubt have a plan B and it will have a plan C," Erdogan warned during a news conference with his Slovenian counterpart in Ankara.

"We do not have to say 'yes' to every decision made about us. The EU has given us nothing so far," he added, without elaborating.

Ties between Brussels and Ankara have been strained since a failed July 15 coup in Turkey.