In a message posted on its official Twitter account, the Turkish General Staff said that both countries' forces conducted separate coordinated patrols in the area between the Operation Euphrates Shield region and Manbij.
The first patrols by both Turkish and U.S. troops in the region began on June 18.
The Manbij deal, which was made between Turkey and the U.S., focuses on the withdrawal of the PKK-affiliated YPG terror group from the northern Syrian city in order to stabilize the region.
In its more than 30-year terror campaign against Turkey, the PKK has taken some 40,000 lives, including those of women and children. The YPG/PKK is its Syrian branch.
Should the Manbij model prove to be a success, Turkey will push for a similar arrangement in eastern Syria.
Turkey has said the presence of terror forces near its border constitute a threat and has launched military operations and other efforts to rid the region of terrorists.