Security sources say the military killed 17 PKK terrorists following the announcement of a curfew in the Silvan district in the southeastern province of Diyarbakır.

The curfew was imposed on the district at 7 a.m. on Monday. Special operations forces and commandos were reinforced with helicopters and tanks.

Reportedly, terrorists were hanging sheets and tarps for camouflage and establishing roadblocks using garbage containers and digging ditches on roads.

In two separate attacks, three soldiers, two of them in Silvan, were killed by terrorists on Thursday. When soldiers were reportedly heading to work in the early hours of the day, they were shot by terrorists in their vehicle.

The PKK recently changed tactics after its Syrian wing, the Democratic Union Party's (PYD) armed People's Protection Units (YPG) clashed with Islamic State of Iraq and al-Sham (ISIS) terrorists in Syria, learning practices for fighting in cities.

In Kurdish-populated provinces of Turkey, terrorists have embraced urban areas as a battlefield in which they set up barricades and ditches and stock ammunitions in houses to use in clashes with security officers.

In Cizre in southeastern Şırnak province, curfews were announced twice in the first weeks of September due to the PKK's youth wing, the Patriotic Revolutionary Youth Movement (YDG-H), targeting both security officials and civilians. Founded in late 1978, the PKK is considered a terrorist organization by Turkey, the EU and the U.S.