Antalya, November 16 (RHC)-- A top Kremlin official says differences remain between Russia and the United States over how to tackle the Takfiri Daesh terrorist group operating across Syria.

Russian presidential aide and foreign policy advisor Yuri Ushakov told reporters on the sidelines of the G-20 Summit of world leaders in the Turkish city of Antalya on Sunday that the two powers still remain divided on what tactics to use in combating the Daesh terrorists.

Ushakov said Washington and Moscow share “strategic objectives on the fight against ISIL that are very close to each other, but differences on tactics still remain,” using another acronym for Daesh. The top Russian official made the remarks after Russian President Vladimir Putin and U.S. President Barack Obama held talks at the summit in Turkey.

Meanwhile, a White House official has also confirmed that the two leaders held “a constructive discussion” on Syria and agreed on the need for UN-negotiated Syria talks and a ceasefire in the Arab country.

Russia launched an aerial military campaign against terrorist groups in Syria on September 30th at the request of the Syrian government. Moscow says its strikes are aimed at helping the Syrian army in its battles against terror groups