The US-Pak stand-off over the ISI's links with the Haqqani terror network has further deepened after Prime Minister Yousuf Raza Gilani summoned Foreign Minister Hina Rabbani Khar back from the United States. Gilani asked Khar, who was representing Pakistan at the UN General Assembly in New York, to return to the country immediately. The Pak Prime Minister had earlier called off his visit to the US and sent Khar in his place. Gilani spent a busy day yesterday contacting leaders of different political parties to develop a consensus on the US accusations. The Pakistan Army chief Gen Ashfaq Parvez Kayani chaired a special meeting of his Corps Commanders to review the security situation in the backdrop of growing tensions and sharp escalation of rhetoric with the US.