Fifteen Turkish warplanes struck the PKK sites at Qandil, Zab [Zap] and Avashin in the mountains of Northern Iraq, the attacks launched shortly before midnight continued until 5:00am (0200 GMT), according to the sources.
The latest series of air strikes come in the daily air strike routine on the militants as conflict rages in southeast Turkey, security sources told Reuters on Friday.
In Turkey’s Diyarbakir, the PKK terrorists shot a restaurant frequented by police forces in a busy commercial district on Friday morning, wounding three police officers and killing one civilian, security sources told Reuters.
One of the hit police officers in Diyarbakir is in critical condition.
PKK is recognised as a terrorist organisation by Turkey, the US, NATO, and the EU.
In addition, a curfew implemented in troubled town of Cizre in southeastern province of Sirnak continues. The outlawed PKK is accused of using civilians as human shields in Cizre.
Turkish Minister of Interior Affairs, Selami Altinok, said on Thursday that health workers are under threat in Cizre.
He emphasised that health workers are targets of systematic attacks by the PKK terrorists and confirmed that nine civilians have lost their lives in such attacks in Cizre, where a curfew was put in effect by the government on Sept. 4.
Hakkari's attack Ramifications
The deadliest PKK terror attack since July 11 took place in Turkey’s Hakkari in the village of Daglica in the Yuksekova district on Sunday evening, where the PKK terrorists blew up roadside mines, as several armoured vehicles were crossing.
In the explosion, 16 soldiers were killed by the outlawed PKK.
Turkish President Recep Tayyip Erdogan sharply scolded the recent terror attack carried out by the PKK terrorists that killed 16 and injured six soldiers in the southeastern city of Hakkari in Turkey.
"I strongly condemn the atrocious attack that caused the martyrdom and injuries of our soldiers in the Yuksekova district of Hakkari," said Erdogan in a statement, early on Monday.
PKK terrorists have carried out numerous attacks against Turkish security forces since the Suruc suicide bombing in Turkey’s southeastern Sanliurfa province, widely thought to have been carried out by ISIS on July 20.
More than 110 Turkish security officials have been killed in militant attacks by PKK and ISIS militants since the bombing.
In response to the PKK and ISIS attacks, Turkish security forces have stepped up their efforts against the militant groups and killed more than 800 PKK terrorists.
Turkish special military units have reportedly entered into Northern Iraq early September, to pursue groups of militants belonging to the outlawed PKK, following recent deadly attacks against security forces by the militant group.
Two battalions of special forces and eight gendarme special operations teams have been sent by the Turkish Army into Iraq after the PKK terrorists' Hakkari attack.
— TRT World (@trtworld) September 8, 2015
Turkey has long been confronted with armed attacks in its southeastern regions by the PKK terrorist group, which was founded in 1974 by Abdullah Ocalan and his supporters.
Armed clashes between the group and security forces and acts of violence by the group have continued on and off for more than 30 years, and claimed more than 40,000 lives.