Russia and the US have agreed to a plan for an area of land in northern Syria to be used for safe zones and for the transfer of refugees, the White House announced Friday.
The United States has been leading a coalition against the Islamic State group in Syria, and Russia has deployed troops in Syria.
“Russia has agreed to establish a safe zone in the vicinity of the northern Syrian city of Raqqah and the areas controlled by the Syrian government,” said State Department spokeswoman Heather Nauert.
She did not give any further details.
Russian officials have repeatedly denied the US has agreed a safe area in Syria or that the Russians have agreed not to deploy troops in the area.
Russia and Turkey have fought a proxy war in Syria since the start of the civil war.
The two countries have sent hundreds of troops into the country to back their Syrian ally President Bashar Assad, and the United States and Russia have launched airstrikes against the fighters.
But Russia has denied that its troops are directly involved in the war, and it has accused the US of arming the rebels.