Khashoggi, a US resident who wrote critically about Saudi Crown Prince Mohammed bin Salman, was killed in October 2018 at the Saudi Consulate in Istanbul.
He had gone there for an appointment to collect documents required for him to marry his Turkish fiancee Hatice Cengiz.
Turkish officials alleged that Khashoggi was killed and then dismembered with a bone saw inside the consulate by a team of Saudi agents sent to Istanbul.
The group included a forensic doctor, intelligence and security officers and individuals who worked for the crown prince’s office. His remains have not been found.
Last week the Turkish prosecutor called for the trial in absentia of 26 Saudi suspects to be transferred from Turkish to Saudi authorities.
Turkey’s Justice Minister later said the government backed the request.
However a lawyer representing Khashoggi’s fiancee criticised the move.
“Making the decision to halt [the trial] is against the law … because the acquittal ruling about the defendants in Saudi Arabia has been finalised,” Gokmen Baspinar said.