Jaafari criticized the way global sides and officials, including the UN Under-Secretary General for Humanitarian Affairs, deal with the situation in Syria being selective in placing blame on the Syrian government while turning a blind eye to the fact of the existence of the so-called "Islamic State of Iraq and the Levant" (ISIL), al-Nusra Front and hundreds of other terrorist groups that have been created by the U.S. allies of the Saudis, Qataris and Turks.
Also Friday, Russia's Foreign Minister Sergey Lavrov said Moscow is doing all it can together with the Syrian government to help the United Nations arrange weekly pauses in Aleppo to deliver humanitarian goods.
The Islamist Jabhat Fateh al-Sham group, formally known as the Nusra Front until it broke its formal allegiance to al Qaeda in July, said that eight of its fighters had been killed fighting at Suleiman al-Halabi.
As members of the Senate Foreign Relations Committee on Thursday demanded to know the Obama administration's "Plan B" for Syria, Deputy Secretary of State Antony Blinken laid out the administration's view.
"If the civil war in Syria continued, extremists could attack Russian interests, and perhaps even Russian cities", U.S. State Department spokesman John Kirby said Wednesday.
"Any investigation which doesn't give us access on the ground is clearly not going to be in a strong position to establish verified evidence", he said.
And I said what I have said, the secretary has said, many times before: "That the consequences are more war, more bloodshed".
That decision came in response to a U.S. coalition air strike on a Syrian army base that killed dozens of soldiers and which Washington said was unintentional.
The relationship between Moscow and Washington is as bad as it has been since Russian Federation joined the fight, in support of President Bashar al-Assad's Syria, almost one year ago.
The Kremlin said on Friday there was no time frame for Russia's military operation in Syria.
Mr Lavrov says that it is United States policy towards Syria that is floundering, insisting that American officials have lost control of both events and of themselves. Aleppo is besieged again, with vital necessities such as water, fuel, and medicine running out for hundreds of thousands.
The Izvestia newspaper reported that a group of Su-24 and Su-34 warplanes had arrived at Syria's Hmeymim base.
He also drew attention to the alleged use of bunker busting " bombs, which has reportedly caused mass destruction in an area that has already been decimated. Russia's defence ministry did not immediately respond to a request from Reuters for comment.
The diplomacy was collapsing this week with the us threatening to end all Syria-related cooperation unless the bombardment of Aleppo stopped.
The World Health Organization said on Friday 338 people had been killed in the past few weeks in eastern Aleppo, including 106 children, and 846 had been wounded, including 261 children.
Geneva: A WHO official on Friday urged warring factions to stop targeting Syria's depleted health care sector, and to allow the immediate and safe evacuation of the sick and wounded who are trapped in conflict areas.
The Observatory said government forces captured a hospital in the city a day after regaining control of a nearby Palestinian refugee camp. Rebel sources denied the army had advanced there. Rebel officials said troops had moved forward but had subsequently been forced to withdraw.
The Doctors Without Borders (MSF) charity accused Syria's government and its ally Moscow of provoking a "bloodbath" in the city, saying the eastern rebel-held portion had become "a giant kill box".
The US is looking at holding Russian Federation accountable for the brutal assault on rebel-held areas of Aleppo this week, some of the worst violence since the start of the five-year war.
White House statement said on Friday in Washington that this was discussed during telephone conservation between the two leaders.