On 16 July 2016, a Turkish anti-government group seized a frigate, later identified as the TCG Yavuz (F-240), from the Gölcük Naval Base.[6] Fleet Commander, Admiral Veysel Kösele, and Commodore Levent Karim were taken hostage by the group.[7] This event is in conjunction with the Turkish coup d'état attempt on 15 July 2016. Previously, the head of the Turkish Armed Forces, Chief of General Staff Hulusi Akar, was taken hostage by coup perpetrators on 15 July 2016 and rescued by pro-government troops the following morning.[8]