U.S. President Barack Obama and Russian President Vladimir Putin have confirmed their readiness to increase military cooperation in Syria.
Following a telephone conversation between the two leaders, the White House said, the presidents confirmed their commitment to defeating Islamic State and the al-Nusrah Front, the Syria-based al-Qaida affiliate.
The Kremlin said in a statement that both Russia and the US are ready to better coordinate efforts to eliminate radical Islamists in Syria.
Both the leaders also discussed the conflict in Ukraine and ethnic and territorial dispute over the Nagorno-Karabakh region in Azerbaijan.