Erdogan says Turkey-Russia joint patrols in Syria to start on Friday
But he warned on Wednesday that Syrian Kurdish militias hadn't fully withdrawn from a 30-kilometre-deep zone from Turkey's border with Syria in keeping with a deal struck between Ankara and Moscow.
"We reserve the right to start our own offensive," Erdogan said, if attacks against Turkey continue.
Turkey launched a long-threatened military operation in north-eastern Syria on October 9 to push back Syrian Kurdish fighters that Ankara considers terrorists.
Two ceasefire deals, first with the United States and then with Russia, brought a pause to the fighting and were intended to allow Syrian Kurdish fighters to evacuate the border area.
On Tuesday, Russian Defence Minister Sergei Shoigu confirmed the complete withdrawal of Syrian Kurdish forces.
But Fahrettin Altun, Erdogan's communications director, said: "We will establish, through joint patrols, whether or not the terrorists have actually withdrawn."
