He said "the main threat to Syria’s territorial integrity comes from the eastern bank of the Euphrates, where independent and autonomous entities are being created under US control."
"We will insist this unlawful activity should be brought to an end. We have been saying so again and again to the Americans and in the UN Security Council," Lavrov said.
The deal between Russia and Turkey on a demilitarized zone in Syria’s Idlib is an interim step, Lavrov said.
"This deal is aimed at eradicating a terrorist threat. No doubt, this is an interim step, as just a demilitarized zone is created," Lavrov stressed.
"But this is a necessary step as the creation of this zone will make it possible to prevent the continuing cases of shelling from the de-escalation zone in Syria’s Idlib Governorate on the positions of Syria’s governmental forces and Russia’s Hmeymim base," he noted.