Putin, Erdogan discuss Syria, situation in Aleppo

"The two heads of state continued the exchange of opinions on the Syrian problem," the report said. "Specifically, they discussed the situation in Aleppo. They made emphasis on the importance of a buildup of joint efforts to improve the humanitarian situation and to give a start to a political process in Syria in practical terms."

"In the wake of a large terrorist attack committed in Istanbul on December 10 that resulted in numerous casualties, the Russian president once again expressed heart-felt condolences to the leadership and people of Turkey," the press service said.

"The two sides reaffirmed readiness for further joint actions to neutralize the terrorist threat in the Middle Eastern region," it said.

Putin and Erdogan also looked at the pressing issues of Russian-Turkish cooperation in the energy sector.