Turkey is ready to take over the security in Syria's Manbij without delay, President Recep Tayyip Erdogan said during a phone conversation with his U.S. counterpart late Sunday.

A statement from the Turkish presidency said Erdogan and U.S. President Donald Trump agreed to take joint measures to clear Daesh's remnants in Syria and prevent the group's resurgence.

Erdogan said that Turkey will not allow PKK and its Syrian affiliate PYD/YPG to destabilize northeastern Syria.

The two leaders also discussed the bilateral relations, as well as the latest developments in Syria.

Erdogan expressed his condolences to Trump over American staff who lost their lives in last week's terrorist attack in Manbij, adding that it was a provocation to influence the U.S. decision to withdraw from Syria.

At least four Americans were killed, and three others injured in an apparent suicide attack in Manbij, Syria, the Pentagon said last week.

U.S. Central Command said two service members died, as well as a Pentagon civilian and a contractor, while conducting a "local engagement." A defense official speaking on condition of anonymity said the contractor was working as an interpreter.

All of the wounded Americans were service members, according to the command.

An unknown number of local civilians were also killed and injured.