President Tayyip Erdogan said on Monday Turkey would take “necessary” further steps in northeastern Syria after his meeting with Russian President Vladimir Putin on Tuesday, the day that a five-day Washington-brokered ceasefire expires.

Axar.az reports citing Reuters that Erdogan is due to hold talks with Putin on Tuesday in Russia’s Black Sea resort of Sochi.

“We will take up this process with Mr. Putin and after that, we will take the necessary steps,” Erdogan told a forum in Istanbul hosted by broadcaster TRT World, without elaborating.