Last Friday, as the eighth round of Syria peace talks wrapped up in Kazakh capital Astana, opposition representatives issued a 44-page report detailing the PYD’s close links with Syria’s government.

On the same day, the opposition provided de Mistura with a copy of the report, calling for the PYD as well as the PKK to be added to the UN's list of known terrorist organizations.

According to the report, the PKK/PYD has committed numerous war crimes in Syria in blatant disregard of international law.

"Given what the PYD has done in Syria and its deep ties to the PKK, which Turkey, the U.S. and the EU all view as a terrorist group, it should be recognized globally as a terror organization,” the report said.

According to Anadolu news agency the report also details the PKK/PYD’s practice of recruiting children as soldiers and committing rights abuses against non-combatants.

Reporter’s code: 50101