Clashes between the army and Kurdish rebels killed one soldier and left three others wounded in a rural area of eastern Turkey, security sources said Friday. The clashes with the Kurdistan Workers\' Party (PKK) in the Pulumur region started on Thursday evening and were still ongoing Friday, the sources said. The PKK, listed as a terrorist group by Turkey and much of the international community, took up arms in 1984, sparking a conflict that has claimed some 45,000 lives. In February, the rebels had threatened to end a unilateral truce, declared in August last year, while saying they would defend themselves \"more effectively\" against military operations.