Malaysia's Attorney-General's Chambers said Najib's detention status should be maintained at his "existing place of detention" subject to the "powers and directions" of relevant authorities. You are using an outdated browser. Please upgrade your browser to improve your experience and security. Malaysia's former Prime Minister Najib Razak is set to serve the remainder of his reduced six-year prison sentence under house arrest after UMNO paid a 50 million ringgit ($12.3 million) fine.