ISTANBUL - Two security force members were killed and 24 were wounded in a suicide bombing attack overnight by the Kurdistan Workers Party (PKK) in Turkey's eastern province of Agri, the local governor's office said in a statement on Sunday. The attack was carried out with a tractor loaded with two tons of explosives on a gendarmarie outpost located in the Dogubeyazit district of eastern Agri province, bordering Iran, the governor's office said.