The explosion occurred in Yuksekova town in Hakkari province after a funeral for two of the victims killed in Thursday's bomb attack which blew up a minibus near the remote village of Gecitli in the same province, the official told AFP on condition of anonymity.

Six police officers were among the injured and four of them had serious injuries, he added.

Security forces believe the explosion was the work of the outlawed Kurdistan Workers' Party (PKK) which has been fighting a 26-year campaign for Kurdish self-rule in Turkey's mainly Kurdish southeast, the official said.

Turkish officials have blamed Thursday's bomb attack on the PKK as well, but the rebels have denied responsibility.