The bomb exploded in a small truck parked opposite a police station in Igdir, near the border with Armenia.

The explosion was similar to attacks in the other parts of the country, according to police who are investigating the blast and believed it may be the work of the outlawed Kurdistan Workers' Party (PKK), according to the news agency.

No group has claimed responsibility for the attack.

Igdir is not a region with a majority Kurdish population, nor is it a zone where the PKK rebels usually operate. The PKK separatists seeking an independent Kurdish state are active in the southern regions near the Turkish borders with Iran, Iraq and Syria.

The PKK, considered a terrorist organization by Ankara, the United States and the European Union, has stepped up their operations this year.

The conflict between Kurdish rebels and Turkish forces has claimed more than 37,000 lives since it began in 1984.