Meanwhile:
"TEHRAN (FNA)- A number of British military men were held captive by the Syrian army in Eastern Ghouta of Damascus, media reports disclosed on Wednesday, saying that they had infiltrated the region for the last month US plot to attack Damascus in collaboration with terrorists and NATO forces that failed.
...
Informed sources then said although the Turkish officials said they were ready to help evacuation of al-Nusra Front (Tahrir al-Sham Hay'at or the Levant Liberation Board) terrorists from Eastern Ghouta to take them to Idlib, this seemed to be a cover as they really meant to rescue their special foreign forces that were among the ranks of the Al-Qaeda-affiliated Al-Nusra in Syria.
"Therefore, the US has ordered Jeish al-Islam, Faylaq al-Rahman and other terrorist groups to allow evacuation of civilians from Eastern Ghouta to army-held regions in a bid to provide the ground for these foreign agents to also leave Ghouta in disguise and enable the Turkish intelligence service to send them to specified regions in al-Tanf and Northern Syria which are under the control of the US troops," they said.
...
Also the US CENTCOM urged withdrawal of allied forces from Eastern Ghouta to Arabayn, Zamalka and
Douma before dividing Ghouta into three areas to pave the ground for their withdrawal from Ghouta region."
http://en.farsnews.com/newstext.aspx?nn=13970122001526