Police have detained a former TV actor-turned-mayor in the latest wave of arrests targeting the oppositionFILE - Turkish actor Erdal Besikcioglu poses at a photo call for the film 'Honey' at the International Film Festival Berlinale inBerlin, Germany, Tuesday, Feb. 16, 2010. (AP Photo/Markus Schreiber, File)FILE - Turkish actor Erdal Besikcioglu poses at a photo call for the film 'Honey' at the International Film Festival Berlinale inBerlin, Germany, Tuesday, Feb. 16, 2010. (AP Photo/Markus Schreiber, File)FILE - Turkish actor Erdal Besikcioglu poses at a photo call for the film 'Honey' at the International Film Festival Berlinale inBerlin, Germany, Tuesday, Feb. 16, 2010. (AP Photo/Markus Schreiber, File)FILE - Turkish actor Erdal Besikcioglu poses at a photo call for the film 'Honey' at the International Film Festival Berlinale inBerlin, Germany, Tuesday, Feb. 16, 2010. (AP Photo/Markus Schreiber, File)ISTANBUL -- Police detained a former TV actor-turned-mayor on Thursday in the latest wave of arrests targeting the opposition.