Speaking to provincial heads of the Justice and Development Party (AK Party) on Thursday, Prime Minister Ahmet Davutoğlu said that the PKK wants to return Turkey to the time of the unsolved murders of the 1990s and asked the pro-Kurdish Peoples' Democratic Party (HDP) to cut its support to the terrorist organization.His statement came as Turkish media reported three soldiers, a police officer and a civilian were killed by the PKK in different locations across southeast Turkey early on Thursday. In the meantime, the HDP distributed leaflets in its stronghold Diyarbakır province calling locals to take to the streets every day at 8:00 p.m. to join HDP-supported demonstrations. Previously, HDP Co-Chair Selahattin Demirtaş made the same call in October for the Kobani protests, which turned into violent clashes between pro- and anti-PKK Kurdish groups. It is feared that the HDP plans similar protests across the country's southeastern regions.Davutoğlu said the PKK and HDP will pay for the lives of defenseless police officers killed in their sleep, drawing attention to the PKK killing two officers while they were asleep in their home in Şanlıurfa. The attack triggered the government to start retaliating against the PKK, which conducted nearly 176 bombing attacks from the beginning of the year to the time when Turkish jets started hitting PKK targets in northern Iraq.Demirtaş, who is accused for failing to distance himself and his party from the PKK, which is recognized as a terrorist organization by the U.S., EU and Turkey, has said that Davutoğlu's call for the PKK to disarm, leave the country and surrender was impossible. "There is no chance that this will happen," Demirtaş said, calling on the Turkish Armed Forces (TSK) to halt the airstrikes on the PKK.The PKK opened fire on gendarmerie forces in the southeastern province of Şırnak, killing three soldiers. Soldiers immediately retaliated, killing one attacker. The incident took place on Thursday morning around 9:10 a.m., and the clashes between the PKK and Turkish soldiers are reportedly ongoing.The TSK has also released a written statement concerning the incident saying the gendarmerie troops that PKK attacked were trying to ensure the security of vehicles set to carry military personnel returning from leave at the time of the incident.Following the PKK attack, armed helicopters and commandos were dispatched to the scene, resulting in the killing of one PKK militant.