On Monday, Russian President Vladimir Putin urged to create the broad UN-mandated coalition to stop ISIL offensive in Syria in cooperation with Damascus.
"It is too early to say if French government will change its position in regard to participating in the coalition proposed by [Russian President Vladimir] Putin… I hope that the French government… supports the coalition," Mariani said.
Mariani stressed that Europe, with Russia, shares ISIL as a common enemy in the Middle East.
Syria has been in a state of civil war since March 2011. Government forces have been fighting so-called "moderate" opposition factions and extremist groups, including the Islamic State and the Nusra Front.
On Wednesday, the Russian parliament backed Putin’s request to conduct airstrikes against ISIL in Syria, following an appeal by Damascus. The Russian Defense Ministry has confirmed that it has since carried out 20 missions in Syria, striking at least eight Islamic State targets.