News media highlighted the denounciations of the Russian Center for Reconciliation in Syria, on the preparation of a provocation on the part of extremist groups in the province of Idlib, where they transferred 20 gas cylinders full of chlorine.
The incident took place five miles across the Euphrates River near Deir ez Zoir, which serves as a "de-confliction" line between United States and Russian/Syrian backed forces.
What happened in the U.S. strikes?
They crossed the Euphrates River, shelling an SDF base, where American advisers were present.
Citing Natalya Krylova, a municipal lawmaker in the town of Asbestos in the Urals, the state news agency Tass said local residents Igor Kosoturov and Stanislav Matveyev were killed in the strike.
Three people inside the tank were killed by a U.S. MQ-9 Reaper drone with precision-guided munition, but no U.S troops or Syrian Democratic Forces (SDF) militants were hurt in the incident, a defense official told Fox News on Tuesday.
Vitaly Naumkin, perhaps Russia's most prominent Syria expert, also urged restraint in a news conference at the Valdai Discussion Club. The government controls the western side and the SDF the east.
Both sides are fighting the last remnants of the Islamic State group in Syria.
What about the Russian mercenaries?. The three-man crew was reportedly killed in the drone strike, while the USA coalition suffered no casualties.
It is very hard to estimate the number of Russians working as military contractors in Syria and the number who are killed.
More details about those killed in the strikes began to emerge in the following days.
They reported that they had a training base in Russia's Krasnodar Krai region, and that numerous men in the group had fought in Ukraine's Donbas war on the side of the separatists. The killed Russians took part in a mission conducted by a Russian private military company. Prigozhin's assets include Evro Polis, an oil trading firm that reportedly has served as a front for Wagner's operations in Syria.
How did the Kremlin react?.
Russian President Vladimir Putin's spokesman, Dmitry Peskov, reaffirmed Wednesday that the Kremlin has no information about the Russian losses in the clash.
Meanwhile, Reuters reported that a U.S. military drone aircraft destroyed a Russian-made T-72 tank in Syria over the weekend, USA officials said on Tuesday, in the second defensive strike against pro-Syrian government forces in less than a week. "The Russians have always responded to our calls, we always answer. I advise you to contact the defence ministry". Let's understand that there are a lot of our compatriots in many countries worldwide, and it's quite hard to have detailed information.
"We recommend not treating media reports as primary sources", he added. Mercenaries, who've been active in the conflicts in eastern Ukraine and Syria, allow Russian Federation to deny official involvement in operations when things go wrong. The U.S. official put the death toll at 100, with 200 to 300 injured. In recent days, rumors swirled online in Russian Federation that large numbers of those military contractors had perished under American fire.
The Kremlin has sidestepped questions about the episode, even as it faces rare criticism at home over its failure to acknowledge the deaths of Russians in Syria.
The pilot survived the initial attack and ejected, but died in a ground fight, detonating his grenade to avoid being captured.