Turkish security forces killed two members of the outlawed Kurdish Workers' Party (PKK) in eastern Turkey on Wednesday, the semi-official Anatolia news agency reported. The patrolling security forces came across a group of PKK rebels in rural areas of Ovacik town of Tunceli province and called them to surrender, said the report, adding two PKK members including one woman, were neutralized in an ensuing clash. The security operations in fight against the PKK rebels are underway in the region, added the report. Meanwhile, two PKK members who escaped from the camps of the PKK in north of Iraq surrendered to the security forces, said the report. The Turkish armed forces have warned that the PKK might intensify its operations over the summer, when warmer weather brings increased infiltration of PKK guerrillas from the mountainous areas in northern Iraq. Listed as a terrorist organization by the Turkish government, the United States and the European Union, the PKK took up arms in 1984 to create an ethnic homeland in southeastern Turkey. Some 40, 000 people have been killed in the conflicts. 