Damascus announced the deployment of troops to Manbij earlier on Friday in response to a call by Kurdish YPG militias. President Tayyip Erdogan of Turkey suggested it may be an attempt by Damascus to put psychological pressure on Ankara.

“We know that Syria is in a psychological action. We know that there is a situation like waving their own flag there. But there is nothing definite there yet,” the Turkish President said as cited by Anadolu news agency.

He also acknowledged that if the YPG has pulled its fighters from Manbij and surrounding areas, there would be “no job left” there for the Turkish army.

Earlier this month, Turkey threatened to launch a new military operation against Kurds in northern Syria, complaining that the American allies of the Kurds were failing to address Turkey’s concerns about them. The US then announced plans to withdraw its troops from areas controlled by Kurds. The Turkish army amassed tanks at its southern border but stopped short of launching the promised offensive.

The YPG on Friday made a public call to Damascus to send its Army to Manbij while saying that the Kurdish fighters would be focusing on fighting the jihadist group Islamic State elsewhere. Damascus responded with a statement from the General Staff, which said its troops have already risen Syria’s flag over Manbij area.

Reporter’s code: 50101