Turkish troops have killed two more Kurdish rebels in an overnight clash in the Tunceli region of eastern Turkey.

The latest clash occurred Friday in an area where government troops have been conducting military operations against the rebels in the Kurdistan Worker's Party, or PKK.

The Turkish military said three Kurdish militants were killed in the same area on Thursday.

Also Thursday, Turkish authorities said suspected militants killed at least four forestry workers and wounded four others. The attack occurred in Bingol province in southeastern Turkey.

Turkey has sent more troops and tanks to the Tunceli region amid speculation about a possible Turkish incursion against Kurdish rebels in northern Iraq.

The PKK has been fighting for autonomy in Turkey's mainly Kurdish southeast since 1984. The United States, the European Union and Turkey classify the PKK as a terrorist group.

Some information for this report was provided by AFP and AP .