Turkish and US troops patrolled around the Saju Stream, which separates the Manbij frontline from the city of Jarabulus, an area falling under Turkey's Operation Euphrates Shield, according to Anadolu Agency reporters on the ground.
U.S. President Donald Trump spoke on Thursday with Erdogan.
The United States-led Coalition against the Islamic State (IS) on Thursday confirmed the start of joint Turkish-American patrols near Manbij.
Although Ankara considers the Kurdish People's Protection Units (YPG) an extension of the terrorist Kurdistan Workers' Party (PKK), Turkey's North Atlantic Treaty Organisation ally the United States continues to support the Kurdish fighters in the fight against the Islamic State (ISIS).
Turkey has accused the USA -back Kurdish forces of containing elements of the YPG, a Kurdish terrorist group, a charge the Pentagon has repeatedly said is not accurate.
"We also call the global community to condemn the Turkish provocations in the safe areas in Syria, and we demand our partners in the worldwide Coalition to show a clear attitude and stop Turkey from launching attacks on the region", it added.
His remarks came a day after the Turkish forces shelled positions of the Kurdish militia in northern Syria. Ankara regards the US-backed YPG as a terrorist organization.
A total of 260,000 Syrian nationals have returned to a swathe of land in northern Syria where Turkey carried out a cross-border operation dubbed "Euphrates Shield", Defense Minister Hulusi Akar said on Thursday.
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During the conversation, issues of the bilateral agenda, developments in Syria and settlement of issues in Manbij and Idlib were raised, said the source.
The US-led coalition fighting ISIS has conducted scores of air and artillery strikes in recent weeks as it has sought to drive ISIS from its last stronghold east of the Euphrates River in Syria. Conducting joint patrols is seen as a way to tamp down potential violence between the various groups in the area.
"We will soon come down hard on the terror organization with more extensive and effective operations", he said.Turkish forces had already bombarded positions east of the river held by the YPG, state-run Anadolu Agency reported on October 29.
As a result of the road map, the Manbij Military Council announced in July that all Kurdish militia who were associated with YPG had left.
"The terror group is digging trenches in Manbij as they have done in Afrin, despite promises made by the United States about PKK/PYD/YPG's withdrawal from Manbij", Akar told lawmakers in a planning and budget committee meeting.
"Ankara thinks that the terror groups on the eastern part of the Euphrates are undermining Syria's unitary structure and threatening Turkey's territorial integrity", he told Arab News.
Past offensives halted at the banks of the river, in part to avoid direct confrontation with the US.