According to Turkey's Anadolu news agency, Urla district mayor Ibrahim Burak Oguz, a member of the opposition Republican People’s Party, was questioned by prosecutors regarding his links to FETO.
Oguz was elected to the position of Urla district mayor on 31 March.
Ankara accuses the organisation of orchestrating the 2016 coup attempt that left 251 people killed, and nearly 2,200 injured. Since then, over 50,000 citizens have been arrested, including state and military personnel, civil activists, journalists and teachers. Tens of thousands more citizens accused of having ties with FETO have been dismissed or suspended.