ANKARA — Thirteen security servicemen were injured, one in an armed attack, in clashes over the last week with terrorist organization PKK in Turkey's southeastern Diyarbakir province, the city governor's office has said.It said in a statement on Sunday that PKK militants and affiliate groups since May 24 have engaged in kidnaps, roadblocks and attacked security forces with home-made explosives and firebombs.On one occasion, militants opened fire on servicemen with long-range rifles, shooting a member of security personnel, who is being treated for a chest wound at the intensive care unit of a local hospital, the statement said.It said security forces detected 54 separate events over the last week that disrupted public order.On Saturday, a group of 50-60 men attempted to block the road that links Diyarbakir with neighboring Bingol province, using heavy-duty vehicles that belonged to a local construction company.The statement said the group acted "under the guise of public assembly," but produced long-range arms when confronted by security forces.The governor's office said that the group tried to use civilians as human shields, shooting at servicemen in an attempt to force them to return fire.16 people were detained in clashes, the statement added.The events come after the PKK reportedly kidnapped an unknown number of children on April 23, the national day for children, threatening to destabilize a delicate 'solution process' to end terrorism and address the issues of minorities, particularly those of the Kurdish minority which is by far the largest accounting for 18 percent of the population.On Saturday, families of some of the kidnapped children staged sit-ins in Diyarbakir where they were abducted, marking the first-ever public reaction to such kidnappings in the southeastern region. The protests received support from high-ranking government officials, including deputy prime ministers Emrullah Isler and Besir Atalay.