ISLAMABAD: Pakistan on Monday summoned US Ambassador to Islamabad David Hale to lodge protest over a drone strike on Pakistan’s soil that killed Afghan Taliban chief Mullah Mansour on Friday. In the meeting, Advisor to Prime Minister on Foreign Affairs Tariq Fatemi pointed out that the drone strike was a violation of Pakistan’s sovereignty and a breach of the United Nation’s charter that guarantees the inviolability of the territorial integrity of its member states. He emphasized that such actions could adversely impact the ongoing efforts by the Quadrilateral Coordination Group (QCG) for facilitating peace talks between the Afghan government and the Taliban. The advisor underlined that Pakistan and the United States had been closely coordinating in the fight against the menace of terrorism and that this cooperation needed to be maintained.