Six Russian TU-22M3 long-range bombers carried out airstrikes on Islamic State (IS, formerly ISIS) targets on the western bank of the Euphrates river in Syria on Friday, RIA Novosti reported.
The airstrikes hit militant strongholds and groups, the Russian Defense Ministry said. The bombers took off from airfields in Russia.
ISIS terror outfit has been incurring huge losses in Iraq in recent months, with its affiliates expelled entirely from Mosul, Tal Afar and other areas.
It also lost much of its territorial gains in Syria, including Raqqa, the group's key bastion there.