They told reporters a group of Kurdistan Workers Party ( PKK ) guerrillas stopped the buses at a roadblock on the road linking the eastern provinces of Erzincan and Sivas on Monday night and forced the passengers to get out .
<response> They told reporters a group of <organization>Kurdistan Workers Party</organization> ( <organization>PKK</organization> ) guerrillas stopped the buses at a roadblock on the road linking the eastern provinces of <location>Erzincan</location> and <location>Sivas</location> on Monday night and forced the passengers to get out . </response>