PKK rebellion
A car bomb, targeting an armored vehicle transporting police personnel, explodes close to a bus terminal in the Bağlar district of Diyarbakır, Turkey, killing at least seven police officers and wounding 27 more people, including 13 officers, according to a joint statement by Turkish officials and the police. The attack comes one day before Turkish Prime Minister Ahmet Davutoğlu's scheduled visit to the city. There has been no claim of responsibility. CNN points out both Kurdish rebels and ISIL militants have claimed similar recent incidents.
Sources: AP Al Jazeera Arab News CNN