US Secretary of State, Rex Tillerson has warned that Pakistan's political leadership would lose control over the country if it does not begin the process of changing its relationship with the Haqqani Network and other terror groups having safe havens in Pakistan. <br/><br/>In his remarks on 'Meeting the Foreign Policy Challenges of 2017 and Beyond' organised by the 2017 Atlantic Council- Korea Foundation Forum in Washington, Mr. Tillerson said Pakistan has allowed so many terrorist organisations to find safe haven within its territories, and these organisations are growing in size and influence. He said Pakistan's relationship with the Haqqani Network needs to be altered. <br/><br/>Mr. Tillerson said US want to work with Pakistan to stamp out terrorism within their boundaries as well, but Islamabad has to begin the process of changing its relationship with the Haqqani Network and others. <br/><br/>Last week, White House had issued a stern warning to Pakistan and asked Islamabad to re-arrest Hafiz Saeed, the 2008 Mumbai attack mastermind.