A combination of file photos show Russian President Vladimir Putin (R) at a news conference in Bishkek on Feb. 28, 2017 and Turkish President Recep Tayyip Erdogan at the Leaders' Roundtable Summit of the Belt and Road Forum for International Cooperation in Beijing, capital of China, May 15, 2017. (Xinhua)

MOSCOW, May 27 (Xinhua) -- Russian President Vladimir Putin and his Turkish counterpart Recep Tayyip Erdogan reiterated mutual commitment on Saturday to deepen the strategic partnership between the two countries, the Kremlin said.

During a phone conversation, the two leaders talked about the mutual cancellation of trade restrictions imposed after Turkey downed a Russian jet near the Turkish-Syrian border in November 2015.

As for the Syrian conflicts, the two leaders underscored the importance of the Memorandum on De-escalation Zones in Syria and they agreed to step up the coordination of efforts on these issues at different levels.

Russian-Turkish relations have been recovering since Erdogan apologized in June 2016 to Putin for the downing of the Russian aircraft.

The two countries, together with Iran, have worked as mediators for the intra-Syrian peace talks in the Kazakh capital of Astana, a parallel process to the UN-sponsored Geneva talks.