Malaysia has deported three Turkish nationals wanted by Ankara for alleged links to a US-based preacher accused of being behind a failed coup against President Recep Tayyip Erdogan. National police chief Khalid Abu Bakar tweeted that the men were "deported back to Ankara" Thursday night, despite concerns from rights groups who fear Malaysia is bowing to pressure from Turkey. Turgay Karaman and Ihsan Aslan were arrested last week under a security law which allows detention without trial for 28 days. Two days later Turkish academic Ismet Ozcelik was also detained - ostensibly for national security reasons.