"While there is no visa liberalization, it is impossible to talk about the full implementation of readmission agreements," the minister told reporters after the talks with EU foreign ministers in Bratislava.
According to the deal agreed on March 18, Turkey pledged to take back all undocumented migrants who come ashore in Greece if EU countries receive Syrian refugees resettled from Turkish camps on a one-for-one basis.
The bloc also promised to accelerate the Turkish EU accession and introduce visa-free regime once Turkey meets the 72 conditions set by the bloc. Ankara has not fulfilled the five conditions that relate to data protection and anti-terror laws so far.
In August, Turkish Foreign Minister Mevlut Cavusoglu warned that Ankara would scrap the EU-Turkey migrant deal if Turkish nationals were not granted visa-free access to the European Union's borderless Schengen area by mid-October.