Calls advocating the establishment of an independent and impartial international commission to probe chemical attacks in Syria have risen at the United Nations Security Council in recent days, with the US accusing the Russia on Monday of impeding efforts in this regard. US Ambassador Nikki Haley to the UN blamed Moscow with obstructing the adoption of a resolution condemning chlorine gas attacks in Syria. Haley told the Security Council that there was "obvious evidence from dozens of victims" to corroborate the chlorine attacks in Eastern Ghouta. "Now we have reports that the Assad regime has used chlorine gas against its people multiple times in recent weeks, including just yesterday," Haley said, referring to the Syrian regime head Bashar al-Assad. UN High Representative for Disarmament Affairs Izumi Nakamitsu was briefing the Council on the work being undertaken by the UN and the Organization for the Prohibition of Chemical Weapons (OPCW) Fact Finding Mission (FFM) to look into all allegations of the use of chemical weapons in Syria. “New reports by the FFM are pending. Should they conclude that there has been the use, or likely use, of chemical weapons in any of these alleged incidents, our obligation to enact a meaningful response will be further intensified,” Nakamitsu added. She said that the complete destruction of the regime’s 27 above-ground facilities should be completed within two months, and added that the FFM was due to submit a report “very soon.” The majority of allegations involve the use of chlorine gas. Meanwhile, allegations of chemical weapon use were continuing, she said, “including only this past weekend in the town of Saraqeb.” According to news reports, nine people have been treated with breathing problems, after a bomb believed to be filled with the toxic gas was dropped on the opposition-held town, in the Idlib province . Nakamitsu said that the situation made it “abundantly clear our continuing and collective responsibility to ensure that those responsible are held to account.” She said that another FFM team has been looking into allegations of the use of chemical weapons by other warring parties, brought to their attention by the Syrian regime. She said its report was pending. Responding to a question by Asharq al-Awsat, UK Deputy Permanent Representative to the UN in New York Jonathan Allen said his country was "deeply concerned about the three reports of the Syrian regime using chlorine attacks in Eastern Ghouta. “A Russian joint independent investigative mechanism means risking giving Assad a sense of impunity,” he continued.