Turkish Armed Forces on Wednesday began a second round of patrolling in the northern Syrian city of Manbij as part of the objective to rid the area of PKK-affiliated groups.

According to an Anadolu Agency correspondent on the ground, armored vehicles belonging to the Turkish military entered near the Sacu river, which separates the Jarabulus region from Manbij.

The U.S. forces on the ground are also simultaneously conducting patrols across Manbij's northern Dadat district.

As part of an agreement with the U.S., Turkish soldiers on Monday entered the outskirts of Manbij, which was held by the PKK's Syrian affiliate the People's Protection Units (YPG), to provide security and assure peace.

Foreign Minister Mevlüt Çavuşoğlu said on Monday that the Manbij agreement was the beginning for the normalization of Turkish-U.S. relations and for re-establishing mutual trust.

As result of these efforts, a Manbij road map was announced after a meeting in Washington between Çavuşoğlu and U.S. Secretary of State Mike Pompeo in early June. The deal focuses on the withdrawal of the YPG from Manbij and stability in the region. It envisages the deployment of Turkish forces to assure peace in the region and train local forces to establish and maintain security.

The U.S. support for the Syrian Democratic Forces (SDF), which is dominated by the YPG, has long been a cause of tension between Ankara and Washington, sparking fears of a direct confrontation between the two NATO allies.

Turkey previously launched Operation Olive Branch on Jan. 20 to eliminate the YPG from Afrin province in northwestern Syria.

The YPG's ultimate aim is to establish an autonomous region in northern Syria by connecting the northwestern Afrin canton to the Kobani and Jazeera regions in the northeast.

As such, Turkey's operation aims to put an end to the group's autonomy plans, which Ankara has called a "terror corridor."