Around 40 Daesh terrorists, including four senior commanders, were killed near Syria's eastern city of Deir el-Zour by a Russian air strike, the Russian Defense Ministry said on Friday, according to the RIA news agency.
It said among those killed were Gulmurod Khalimov and Abu Muhammad al-Shimaali, who oversees foreign fighters at Daesh.
Heavy clashes are taking place between Assad regime forces and the Daesh terror group around the city as terrorists fight back to reinstate a years-long siege of the city.
Troops of the Assad regime on Tuesday broke the nearly three-year terrorist blockade of parts of the city, marking a significant advance against the militants.