phots:see what happened after bomb and gun attack on courthouse in Izmir

Two attackers, a policeman and a court worker have been killed in a car bomb and gun

assault on a courthouse in the Turkish city of Izmir, state media say.

Officials blamed Kurdish militants for the attack. A third attacker is reportedly still being sought.

The attackers drove a car to the courthouse entrance, sparking an exchange with police and then detonating the car bomb.

A number of people were wounded in the explosion, some critically.

Some of Turkey's big cities have been targeted recently both by so-called Islamic State (IS) and by Kurdish militants.

Turkey launched a military operation in Syria in August to push back IS and Kurdish forces from the Turkish border