France's foreign minister cast doubt on Saudi Arabia's investigation into the death of dissident journalist Jamal Khashoggi on Wednesday, saying "not enough" was being done to find those responsible for his murder.
The announcement came as the Saudi chief prosecutor ended a three-day visit to Istanbul during which he held talks with Fidan and other Turkish officials.
A Turkish prosecutor publicly confirmed Wednesday for the first time that journalist Jamal Khashoggi was strangled as soon as he stepped into the Saudi Consulate in Istanbul and his body was dismembered.
"He thought of the possibility of them capturing him", Cengiz said, adding that consulate staff on September 28 were so cordial it made the USA -based reporter homesick for Saudi Arabia.
Security guards are seen behind barriers blocking the road leading to the Saudi Arabia Consulate in Istanbul.
The Saudi prosecutor's office meanwhile invited Fidan and his delegation to Riyadh "along with the evidence they have obtained", it added.
The 59-year-old was a columnist for The Washington Post and vanished after entering the consulate in Istanbul.
Over the period - which was either side of the last general election - Saudi Arabia was the government that spent the most on visits by MPs, followed by Taiwan and Hong Kong.
At a memorial service for Khashoggi in the U.S. capital city on Monday, Nihad Awad, executive director of the Council on American-Islamic Relations in Washington, told the gathered crowd he thought the best way to both honor his late friend and shame the government believed to have killed him would be to rename the street where the Saudi embassy sits after Khashoggi.
Yet some of those implicated in the killing are close to Crown Prince Mohammed bin Salman, the kingdom's heir-apparent whose condemnation of the killing has failed to ease suspicions that he was involved.
Turkey has not publicly blamed Saudi Arabia for the murder.
A critic of the Saudi royal family, Khashoggi had been living in exile in the United States.
US Secretary of State Mike Pompeo on Wednesday said the murder "violates the norms of worldwide law". On Wednesday Switzerland said it would halt deliveries of spare weapons parts to Saudi Arabia over the murder.
In a sign of the pressure on the Saudi leadership to change course, top US officials on Wednesday demanded peace talks within a month to end the Yemen conflict.