Malaysian Prime Minister Mahathir Mohamad (C) leaves after attending a press conference in Petaling Jaya, Selangor, Malaysia, May 17, 2018. Mahathir Mohamad said on Thursday that the police have reasons to search the residences of former Prime Minister Najib Razak who was defeated in the general election on May 9. (Xinhua/Chong Voon Chung)