In a telephone conversation late on Monday, Shamkhani and Patrushev held talks on a host of issues, including ways to strengthen and continue Tehran-Moscow cooperation in the fight against Takfiri terrorist groups in Syria, like Daesh (ISIS or ISIL) and al-Nusra Front, until the full elimination of the criminal groups.
The two sides also stressed the necessity for regular consultations between the Islamic Republic and Russia with aim of advancing political process of resolving the prolonged crisis in the Arab country.
Diplomatic efforts to end fighting in Syria have gained momentum in recent weeks with the announcement of a ceasefire in the Arab country on January 1.
The truce, which has been negotiated between Russia, Iran, Turkey, the Damascus government and the Syrian opposition, excludes terrorist groups such as Daesh (ISIL) and Jabhat Fateh al-Sham, formerly known as al-Nusra Front.
It will be followed by a new round of peace talks between the Syrian government and the opposition in Astana, Kazakhstan.
Syria has been gripped by civil war since March 2011 with various terrorist groups, including Daesh, currently controlling parts of it.