SILOPI, Turkey: Five people were killed in eastern Turkey on Friday in a series of clashes between security forces and Kurdish militants, part of a surge in violence that has put further strain on a fragile peace process between Ankara and the rebels.

Three people were killed and seven wounded during clashes between police and militants of the Kurdistan Workers Party (PKK) in the town of Silopi in Sirnak province, close to Turkey’s borders with Syria and Iraq, authorities said.

In two other separate incidents in Van and Agri provinces, the militants killed two soldiers, bringing the death toll among Turkish security forces since July 20 to at least 21.

Violence has swept eastern Turkey since last month when the outlawed PKK ramped up attacks on security forces and Ankara launched reciprocal air strikes against the militants in Turkey and northern Iraq.

The provincial governor’s office in Silopi said PKK militants had dug trenches and erected barricades across the town and that they had then attacked security forces with rockets, handmade explosives and rifles at 5:30 a.m. (local time). The statement said a 17-year-old youth and a 58-year-old man were among those killed and that operations were still continuing.