On Sunday, the 10th G20 summit kicked off in the Turkish city of Antalya.
"We are confident that on the issue of anti-terror cooperation, we must show more determination," the Turkish leader said while opening the G20 leaders' meeting.
On Friday night, eight extremists wearing explosive belts attacked several venues across Paris, killing 129 people and injuring over 350. Responsibility for the attacks was claimed by the Islamic State (ISIL) militant group, operating in Syria and Iraq.
"The slow regain of the economic activity is also indicating that we would see undefined areas and undetermined risks. In addition to all these risks we also see some political tensions in various places all over the world," Erdogan said.
Erdogan said that the refugee crisis also attracts more and more attention and severely affected the cooperation in the humanitarian sphere.
In recent months, the European Union has been struggling to cope with a massive influx of refugees, many of whom make the arduous journey to Europe across the Mediterranean Sea. Turkey is currently hosting about two million Syrian refugees alone.