The outlawed Kurdistan Workers' Party (PKK) on Monday said one of its guerrillas carried out a deadly suicide bombing against troops in eastern Turkey as a reprisal for the alleged bombing of a civilian village.

Two soldiers were killed and 31 were wounded in the bombing early Sunday in the Dogubayazit district of Agri province, the army said.

Two Turkish soldiers were killed and at least two dozen other troops were wounded early Sunday in a suicide attack blamed on Kurdish militants, as Ankara kept up its air campaign against the rebels' bases in northern Iraq.

The attack in the Dogubayazit district of the eastern Agri province is the first time Kurdistan Workers Party (PKK) militants have been accused of staging a suicide attack in the current crisis, amid an escalating cycle of violence that appears to have no end in sight.

A head-on collision between a minibus and small truck killed 13 people and injured 12 in northeastern Turkey on Saturday, the Anatolia news agency reported.

The accident happened on the outskirts of the town of Agri, near the border with Iran.