The group, the P.K.K., made its declaration days after its long-imprisoned leader urged the movement to disarm and disband, but there are still many questions about the prospects for ending 40 years of deadly conflict.

Kurdish fighters who have waged a 40-year insurgency in Turkey have declared a ceasefire, just two days after their imprisoned leader called for the group to disarm.

The militia wing of the Kurdistan Workers Party announced a cease-fire with immediate effect Saturday to halt decades of conflict between Turkey and the Kurds.