A Kurdish rebel group has claimed responsibility for a suicide car bombing at a police station in southeastern Turkey.

The outlawed Kurdistan Workers' Party, or PKK, issued a statement on Thursday identifying the bomber as "Dirok Amed."

The attack in the town of Midyat on Wednesday killed three police officers and three civilians.

Turkish officials also suspect the PKK -- considered by Ankara and its allies to be a terrorist group -- was behind a Tuesday car bomb attack in Istanbul. That attack targeted a police vehicle during morning rush hour and killed 11 people.

Turkey is suffering from a surge of violence since last summer when a fragile truce with the Kurdish rebels collapsed.

The PKK has fought the Turkish state for decades in a conflict that has claimed thousands of lives.