Turkey police HQ hit by deadly bomb blast
The bomb was detonated at the entrance of the police complex, officials say. The blast also damaged nearby residential buildings.
The attackers then reportedly fired rockets at the headquarters.
Diyarbakir province has seen violent clashes between PKK separatists and the Turkish army in recent months.
Last year, the city of Diyarbakir and a number of other areas in the south-east were put under curfew as part of a security crackdown.