Human Rights Watch (HRW) has called on Malaysian government to provide two Turkish nationals, controversially detained in Kuala Lumpur last week, with full access to legal counsel and contact with their families.

Turgay Karaman, the principal of the Gülen movement-affiliated Time International School in Ipoh, Malaysia, and Turkish businessman İhsan Aslan were abducted by unidentified persons in Kuala Lumpur on Tuesday. Malaysian authorities said the two had been detained on suspicion of national security offenses. However, many believe, the Turkish expats were detained as part of President Recep Tayyip Erdoğan’s witch hunt against the movement members as Malaysia, in October 2016, extradited two Turkish citizens with ties to the movement back home.

“Malaysian authorities should explain why they are holding two longtime residents of Malaysia without charge on security grounds,” HRW’s Asian director Phil Robertson said in a written statement Friday adding: “Malaysia’s administrative detention laws open the doors to easy abuse, so it’s important for the government to provide the men’s location and to allow them immediate access to their families and legal counsel.”