Turkish Justice Ministry said in a statement on Monday it conveyed a letter of extradition request to the Foreign Ministry for the arrest of YPG/PKK ringleader Ferhat Abdi Şahin.
Turkish Justice Ministry's request for the extradition came after a red notice was issued for Şahin, code-named Mazloum Kobani.
Earlier this week, U.S. Senators Lindsey Graham and Chris Van Hollen asked the U.S. State Department to issue Şahin a visa so he could visit Washington.
U.S. President Donald Trump had previously said on Twitter that he anticipated a meeting with Şahin.
This was criticized by senior Turkish officials, who said that since Şahin is a wanted terrorist, he should receive treatment in line with Ankara's agreements with Washington.
Turkish Justice Minister Abdulhamit Gul said on Friday that President Recep Tayyip Erdoğan would contact U.S. officials for the terrorist's extradition if he were to set foot on U.S. soil.
Turkey views Şahin as a terrorist chieftain linked to the PKK group whose Syrian branch is the YPG/PKK.
In its more than 30-year terror campaign against Turkey, the PKK -- listed as a terrorist organization by Turkey, the U.S. and the European Union -- has been responsible for deaths of 40,000 people, including women, children and infants.
