ISTANBUL, Dhu-AlHijjah 7, 1436, Sep 21, 2015, SPA -- Tens of thousands of flag-waving demonstrators rallied in central Istanbul on Sunday to denounce violence by Kurdish rebels as the country's prime minister pledged damnation for the separatists, according to AP. Speakers condemned terrorism and the violence which has rocked Turkey since the resumption of fighting between the military and the Kurdistan Workers' Party, or PKK. The separatist group is considered a terror organization by the Turkey, the U.S. and the EU. At the rally, Prime Minister Ahmet Davutoglu roared into the microphone as Turkish flags waved. -- SPA 00:44 LOCAL TIME 21:44 GMT www.spa.gov.sa/w