Representatives of the Syrian opposition said that the Russian planes VC attacked the positions of its troops. On Monday, September 25, according to Reuters.
In particular, U.S.-backed military forces — “Syrian democratic forces” (SDS) is a report that this occurred at a major gas field, located near Deir ez-Zor.
A few days before the CDC announced the capture of the largest gas fields in the province of Deir ez-Zor — Conoco.
SDS is an Alliance of Syrians and Kurds who are fighting with the militants of the terrorist organization “Islamic state” (IG, is prohibited in Russia) on the Eastern Bank of the Euphrates. They and the Syrian government forces supported by Russia are conducting separate operations against ISIS.