"There has been no agreement by anybody on… that laundry list of, I don't know whether to call them claims, accusations or assertions that I also saw in that same media. I wouldn't give a lot of credit to it", Jeffrey said during the event.
Meanwhile, Washington and Moscow continue to exchange views on the ongoing conflict in Syria and although both sides agree on the necessity of a political end to the war no agreement has been reached yet said Jeffrey at the event.
"We have exchanged our views on Syria with Russia at every level", Jeffrey said at the Middle East Institute in Washington on Tuesday. "There's no agreement. There are no negotiations, but there are continued exchanges… We both agree that there needs to be a political end to this conflict".
The Syrian civil war, ongoing since 2011, has resulted in over 5.6 million refugees and over 6 million internally displaced people. As government forces led by President Bashar Assad, regained control over most of the country’s territories, they have strived to create conditions favourable to the repatriation of refugees. Moscow is assisting Damascus in this process, through the provision of humanitarian aid and as a guarantor of the ceasefire.