The mayors of three major cities in southern Turkey were arrested Saturday, state-run media reported, joining a growing list of opposition figures detained since the mayor of Istanbul was imprisoned in March. Abdurrahman Tutdere, the mayor of Adiyaman, and Zeydan Karalar, who heads Adana municipality, were detained in early morning raids, according to Anadolu Agency. The CHP mayor of Antalya, Muhittin Bocek, was arrested with two other suspects in a separate bribery investigation by the Antalya Chief Public Prosecutor’s Office, Anadolu reported.