Football coach and former Galatasaray player, Uğur Tütüneker has been detained as part of an investigation into the Gulen Movement, which the government accuses of masterminding the July 15 coup attempt.

Arrest warrants were issued for four ex-football stars, Arif Erdem, İsmail Demiriz, Uğur Tütüneker, Hakan Şükür and their assets were seized, late in August.

Tütüneker was detained at Istanbul Atatürk Airport, on his way from Switzerland to Turkey, on Thursday.

Tütüneker had earlier announced that he would go to Turkey for testimony.