ISLAMABAD: Inter-Services Intelligence (ISI) Director General Lieutenant General Naveed Mukhtar on Friday called on Prime Minister Nawaz Sharif in the first such visit since his appointment as the ISI chief earlier this month, said a Prime Minister’s Office statement. According to sources, the ISI DG and the prime minister discussed matters of internal security. The premier appreciated the role the ISI had played in the war on terror. Lt Gen Mukhtar replaced Lt Gen Rizwan Akhtar as head of ISI earlier in December. The position of the ISI’s director general fell vacant after Lt Gen Rizwan Akhtar was transferred to the National Defence University Islamabad as its president. Earlier, Gen Mukhtar was serving as Karachi corps commander. He was promoted to the rank of lieutenant general and posted to the army’s Corps V in Sept 2014. He had commanded a brigade in South Waziristan and had also served in operations directorate of the army.