In April 2007, the US Government Accountability Office (GAO) identified the financial and other restrictions that the military government places on international humanitarian assistance in the Southeast Asian country. The GAO report, entitled "Assistance Programs Constrained in Burma," outlines the specific efforts of the Burmese government to hinder the humanitarian work of international organisations, including by restricting the free movement of international staff within the country. The report notes that the regime has tightened its control over assistance work since former Prime Minister Khin Nyunt was purged in October 2004.