Humanitarian deliveries will be allowed to be sent through a key crossing point from Turkey into northwest Syria, but only under the condition that they must be made in "full cooperation and coordination with the Syrian government".
The decision by Syria, which was sent in a letter to the United Nations Security Council by Syria's ambassador to the UN, Bassam Sabbagh, on Thursday, will allow the Bab al-Hawa border crossing to be used for another six months, after Russia blocked a proposed nine-month extension at the Security Council.
Both the short extension and the condition to fully cooperate with the Syrian government have raised concerns amongst people in Syria and aid organisations.
Sherine Ibrahim, the Turkey country director for Care, an international humanitarian organisation, said the non-renewal of the previously operating cross-border aid mechanism could have serious implications.
"Bilateral agreements put power and control in the hands of a few parties, making such agreements inherently subject to far more influence by competing political interests and often come with little transparency, she said in a statement to Middle East Eye.