Pakistan has summoned the Afghan charge d'affaires to the foreign ministry in protest at recent cross-border attacks by Taliban militants. Islamabad says hundreds of militants from Afghanistan's Kunar and Nuristan provinces attacked seven army posts in Chitral near Afghan border on Saturday, killing 25 Pakistani security forces. "The activities of the terrorists are a matter of great concern to both the governments and peoples of Pakistan and Afghanistan. They cannot be allowed to continue such blatant attacks from across the border," the ministry said in a statement. The statement also urged US-led NATO forces and the Afghan National Army to prevent such cross-border attacks by militants.