Former premier Najib Abdul Razak performed a “sumpah laknat” denying that he had ordered the killing of Altantuya Shaariibuu.<br /><br />A sumpah laknat is an oath beseeching God to curse those who are in the wrong.<br /><br />The oath was taken after Najib performed his Friday prayers at the Masjid Jamek Kampung Baru in Kuala Lumpur this afternoon.