The 48-year-old, who has been in jail in Tripoli since 2014, left the country immediately for Turkey
Authorities in Libya have released Saadi Gaddafi, a son of the former leader Muammar Gaddafi who was ousted and killed during a 2011 uprising.
Prime minister-designate Abdul Hamid Dbeibah said in a tweet early on Monday that Gaddafi, 48, had been released in compliance with a previous court order.