ISTANBUL, TURKEY - JANUARY 06: Police officers take security measures at the scene where a woman reportedly blew herself up at a patrol in Istanbul's main tourist area Sultanahmet, which is the home of world famous attractions including the Blue Mosque and Hagia Sophia Museum, leaving one police officer dead and one injured in Turkeys Istanbul on Tuesday, January 06, 2015. (Photo by Erhan Elaldi/Anadolu Agency/Getty Images)