Mr. Topaca said the pair would have carried out a suicide car bomb attack although their target was not known. The assailants had hung a Turkish flag on their car, in an apparent attempt to disguise themselves, he said.
Turkey has been rocked by a wave of bomb attacks since last summer that have killed hundreds of people and been blamed on either the PKK or the Islamic State group.
Fighting between the PKK and the state security forces resumed last year after the collapse of a fragile two-year ceasefire. Since then, more than 600 Turkish security personnel and thousands of PKK militants have been killed in clashes, according to the state-run Anadolu Agency. Rights groups say hundreds of civilians have also been killed in the clashes.
The deadliest attack took place in Ankara on October 10, 2015, killing 103 people attending a peace rally including many Kurdish activists. Authorities blamed that attack on the Islamic State group.
On Thursday, 10 people were slightly wounded by a bomb mounted on a motorcycle which exploded near a police station in Istanbul. Six people have been detained in connection with the attack, which authorities blamed on the PKK.
(Sourced from agencies, feature image courtesy:twitter.com)