Russian President Vladimir Putin arrived on Sunday for a meeting of the G20 economies in Turkey's Antalya.
The summit has taken on new urgency after attacks in Paris pushed the fight against Islamic State to the top of the agenda.
Summit host Turkish President Recep Tayyip Erdogan urged world leaders on Saturday to prioritize the fight against terrorism, saying the Paris attacks claimed by Islamic State showed the time for words was now over.
On the sidelines of the summit on Sunday, a Kremlin spokesman said it was too early to speak of a rapprochement between Russia and the West after the Paris attacks.
Russian politicians on Saturday said the Paris attacks underscored the need for the West and the Kremlin to bury their differences and join forces to take on Islamic State in Syria.