Two people have been killed and 12 others injured by a suicide bomber in south-eastern Turkey, authorities said.
The attack happened in a main street of the mainly-Kurdish city of Bingol, Governor Mustafa Hakan Guvencer said.
There was no immediate claim of responsibility, but Kurdish rebels who are fighting for autonomy in Turkey's south-east have carried out suicide bombings in the past.
Mr Guvencer said the attack happened in one the city's busiest streets and three of the wounded were in a serious condition. The blast shattered glass and shop windows in surrounding buildings.
Interior Minister Idris Naim Sahin said the blast occurred near the local branch of the ruling party, but the building was not the intended target. The attack came on the 88th anniversary of the founding of the republic.
Television footage showed people running away from the site of the explosion, while others urged people to evacuate the streets. Some were seen surrounding a body.
Turkey's conflict with the rebels of the Kurdistan Workers' Party, or PKK, has resulted in many deaths since the insurgents took up arms in 1984.
The attack comes 10 days after Turkey's military launched massive anti-rebel operations in both south-eastern Turkey and across the border in northern Iraq - where the rebels maintain bases - killing dozens of rebels.
Those operations were spurred by co-ordinated rebel attacks on military and police posts near the border in which 24 soldiers were killed - the deadliest one-day toll against the military since the 1990s.
The last suicide bombing was in September, when an attacker detonated a bomb outside a paramilitary station near a Mediterranean resort town, injured two people.