Turkey's armed forces command said it had scrambled a total of six F-16 fighter jets in three separate incidents responding to Syrian military helicopters approaching the border yesterday.
However, there was no violation of Turkish airspace.
It said in a statement four of the jets had scrambled from Incirlik air base in southern Turkey in response to Syrian helicopters flying south of the Turkish province of Hatay.
Two more F-16s took off from a base in Batman after Syrian helicopters were spotted close to the border south of the Turkish province of Mardin.
Meanwhile, French Foreign Minister Laurent Fabius said that a text agreed by members of the UN Security Council in Geneva on a political transition for Syria implied that President Bashar al-Assad would have to step down.
World powers agreed that a transitional government should be set up in Syria to end the conflict there, but they appeared at odds over what part Mr Assad might play in the process.
Russian Foreign Minister Sergei Lavrov said the plan did not imply at all that Mr Assad should step down as there were no preconditions excluding any group from the proposed national unity government.
Peace envoy Kofi Annan said after the talks the government should include members of Assad's administration and the Syrian opposition and that it should arrange free elections.
Mr Fabius said a meeting on 6 July in Paris with more than 100 participants would aim to create a "united front" among all strands of the opposition to help put in place the Annan proposal.
Neither China nor Russia have agreed to attend the "Friends of Syria" conference.
France, along with Western and some Arab states, has been trying for months to increase the pressure on Damascus. It has been seeking to reach a compromise with Russia, a supporter of Mr Assad, to allow tougher action by the Security Council and move towards a political transition.
In June, Paris proposed making Mr Annan's existing peace plan for Syria obligatory by invoking the UN's "Chapter 7" provision, which allows the Security Council to authorise actions ranging from sanctions to military intervention.
