Turkish President Recep Tayyip Erdoğan said Tuesday that joint patrols by U.S. forces and a Kurdish-led militant in northern Syria are "unacceptable."
"Not only can we not accept (the joint patrols), such a development will cause serious problems at the border," Erdoğan told reporters at parliament.
Erdoğan, set to meet Trump in Paris this weekend, told reporters he would discuss the patrols that he said were being carried out inside Syria by the United States and allied Kurdish-led Syrian Democratic Forces (SDF).
"I believe when we speak with Trump, they will probably stop this process," he said.
The U.S. forces and the SDF conducted two joint patrols last week after Turkish forces shelled positions in northern Syria under SDF control.