Two suicide car bombers blew themselves up on the outskirts of the Turkish capital Ankara after police called on them to surrender, according to a Turkish official and local media.
Governor Erkan Topaca said the two bombers - a man and a woman - died on Saturday's incident outside a horse farm, The Associated Press news agency reported.
No one else was wounded in the blast.
Topaca said the assailants are thought to be linked to the outlawed Kurdistan Workers Party, or PKK, which has carried out a series of suicide car bombings over the past year.
"The materials used, the construction and the way it was planned point to the PKK a little," he said, according to the state-run Anadolu news agency.
The governor said that the suspects were sought by police after a tip from Diyarbakir, a mainly Kurdish province in Turkey's southeast.
In televised comments, Topaca added that the suspects were a male whom they had identified and a female whose identity they had yet to ascertain.