Russian President Vladimir Putin held phone talks with his Turkish counterpart Recep Tayyip Erdogan.

He sides discussed the frequent violations by militants of the cessation of hostilities regime in the Idlib de-escalation zone in Syria, the Kremlin press service reported.

The conversation took place on the initiative of the Turkish side.

Erdoğan voiced concern over ceasefire violations in the past two weeks by forces of the Bashar al-Assad regime in the Idlib de-escalation zone, Turkey’s Presidential Communications Director Fahrettin Altun said on Twitter.

According to the source, both Presidents expressed a commitment to the Sochi Idlib Memorandum. Erdogan said that significant progress has been made towards its implementation, but the ongoing attacks over the past two weeks may damage the common goals of the parties.

Erdogan's press service also said that the two presidents discussed the political situation in Bosnia and Herzegorvina, TASS reported.

“President Erdogan noted governmental crisis in Bosnia and Herzegovina and expressed hope that cooperation with international organizations is especially important for achieving peace and stability," the press service added.

During the telephone talks, the parties discussed preparations for a bilateral summit to be held in April in Moscow, the Kremlin’s press service reported.

“The preparation for holding the eighth meeting of the Council of High Level Cooperation between Russia and Turkey in Moscow in April of this year has been discussed,” the message said.

During the telephone talks, the Russian leader warmly congratulated his counterpart on the 65th anniversary, noted his great personal contribution to the development of Russian-Turkish relations.