Six people were killed and 91 injured in the attack carried out by a male suicide bomber in Turkey capital, the governor said to reporters.
Ankara Gov. Kemal Onal identified the suicide attacker as 28-year-old Guven Akkus, and said the type of the attack was similar to those carried out by Kurdish rebels.
Akkus had two separate criminal records and spent two years in prison for hanging illegal posters and resisting police, but it was not clear if he was affiliated with the separatist Kurdish rebel group, the Kurdistan Workers Party, or PKK.
"The type of the explosives and equipment used is similar to those used by the separatist group," PKK, Onal said.
PKK has been fighting for autonomy in the country's southeast.
Bodies of military personnel with American and Polish chevrons on uniforms were found in Avdiivka, adviser to the head of the Donetsk People's Republic said