At least nine people were wounded, three of them critically, when a car bomb exploded on Monday in a town in eastern Turkey

At least nine people were wounded, three of them critically, when a car bomb exploded on Monday in a town in eastern Turkey, security sources said.

The bomb-laden vehicle blew up in front of the courthouse in Ovacik, around 800 kilometers (500 miles) east of Ankara, according to the sources who declined to be named.

Two of the wounded were police officers, they said.

It was not immediately clear who carried out the attack. Television footage showed the force of the explosion caused extensive damage to the building.