The Kurds in Syria say the Syrian government has agreed to send its army to the northern border to try to halt Turkey’s offensive against them.
It follows the US decision to pull all its remaining troops from the area over the “untenable” situation there.
The Turkish assault, launched last week, is aimed at forcing Kurdish forces from along the border area.
Areas under control of the Kurdish-led Syrian Democratic Forces, have come under heavy bombardment over the weekend, with Turkey making gains in two key border towns.
Dozens of civilians and fighters have been killed on both sides.
Turkey views the Kurdish groups within the force as terrorists and says it wants to drive them away from a “safe zone” reaching 30km into Syria.