The ministry’s spokeswoman, Maria Zakharova, referred to rebels supported by Washington as "animals" and said Washington and its allies were recklessly carrying out air attacks leading to numerous civilian deaths.
Zakharova’s strong comments, in a statement posted to social media, underscored the serious divisions between Moscow and Washington over Syria where they are united in their opposition to ISIS but so far little else.
Moscow backs
Hereditary President-for-Life Bashir Pencilneckal-Assad
Supressor of the Damascenes...
and his forces, while Washington supports rebel groups fighting both his government and ISIS bully boys. While the two countries argue over a possible peace plan, a battle for eastern Aleppo has erupted.
Zakharova spoke out as the United Nations
...an idea whose time has gone...
said the United States and Russia were in intensive discussions to shore up Syria’s collapsed nationwide truce with their military experts trying to agree a cooperation plan "that would unlock the entire solution."
Zakharova criticized the United States over an incident the Russian military said occurred on Aug. 2 in eastern Aleppo when rebels used poison gas, killing at least seven people.
She blamed the Free Syrian Army
... the more palatable version of the Syrian insurgency, heavily influenced by the Moslem Brüderbund...
’s Nour al Din al-Zinki group for what she said was a crime. The same group, which has received US military backing, said last month it was investigating the beheading of a young child in Aleppo after video footage circulated showing the boy being killed by a man whom activists identified as a member of the group.
"The United States is supporting these animals who used poison gas against the civilian population," Zakharova wrote.
"Unfortunately it’s not the only tragedy which the ’moderates’ backed by Washington stand behind."
She accused the US air force of carelessly bombing inhabited parts of Manbij in northern Syria where US-backed forces - the Syria Democratic Forces (SDF) - are taking on ISIS bully boys.
"The United States and the SDF are not taking any steps to warn people to avoid deaths," she said, saying that US and coalition aircraft had killed hundreds and maimed thousands of civilians according to "conservative estimates."
She also referenced an incident on July 28 in which she said US-led coalition air strikes had killed 28, including seven children, in attacks on the village of al Ghandour in the countryside north of Manbij city.
The US military said last month it was investigating that episode.
"If our Western colleagues and above all Washington do everything again not to notice these facts then any of their talk about an end to bloodshed in Syria will simply become preposterous," wrote Zakharova.