Turkish Foreign Minister Mevlut Cavusoglu said his counterparts from Iran, Russia and Syria could hold a meeting next month in Moscow.
Cavusoglu added that the upcoming meeting will be within the framework of efforts to restore Turkish-Syrian relations, and this quadripartite meeting is likely to be held in early May.
In remarks on Friday to state broadcaster TRT Haber, Cavusoglu said Turkey had engaged in these negotiations following the blockage of the political track in Syria.
The Turkish minister said that the way to overcome this impasse is to ensure that elections are held in Syria within the framework of Security Council Resolution 2254, or to negotiate a road map between the regime and the opposition, "otherwise it will not be possible to achieve lasting stability and peace."
He pointed out that the heads of intelligence of his country, Russia, Iran and the Syrian regime met three times, and the defense ministers met twice, in addition to a meeting at the level of deputy foreign ministers.
Cavusoglu stressed that the ministerial meeting will be held in Moscow, and that Russia will talk to Iran and the Syrian regime about setting the deadline and inform his country of this.
Cavusoglu stressed the need to wage a joint "struggle" against PKK fighters in Syria, calling on Russia and Iran to support this "struggle" unconditionally.
Ankara classifies the PKK as a terrorist organization, and the Kurdish People's Protection Units (YPG) in Syria are part of it.