Speaking to journalists on board his plane while returning from World War I commemorations in Paris, Recep Tayyip Erdogan also said that Turkey had shared audio recordings relating to the killing with Saudi Arabia and other nations, including the United States, Britain, France, Germany and Canada. "Our assessment is that he was certainly aware of what was going to happen to Jamal Khashoggi".
Asked if the audio links Saudi Arabia's de facto ruler to the killing, Bolton said: "That's not the conclusion I think that the people who heard it have come to, and that's certainly not the position of the Saudi government".
He said: "The recordings are really appalling".
Eighteen men have been arrested in the case; however, Khashoggi's body has not been found.
As Mohammad al-Otaibi walked a team of reporters through the rooms of the six-story Saudi Consulate in Istanbul, he avoided eye contact and buried his hands in the pockets of his suit trousers.
Mr Khashoggi was strangled as soon as he entered the Saudi consulate in Istanbul last month, as part of a premeditated killing, Turkish prosecutors have said.
FILE - Saudi journalist Jamal Khashoggi at the World Economic Forum in Davos, Switzerland, Jan. 29, 2011.
"We gave the recordings, we gave them to Saudi Arabia, we gave them to Washington, to the Germans, to the French, to the English", Erdogan said in a televised speech. CIA Director Gina Haspel also heard the recording last month, The Post reported.
In a separate development on Monday, Turkey reacted angrily after French Foreign Minister Jean-Yves Le Drian contradicted Mr Erdogan's assertion that France had received an audio recording from the consulate and accused the Turkish leader of playing "political games".
A spokeswoman for the UK Foreign Office told Business Insider she would neither confirm nor deny Erdogan's comments because it was an intelligence matter.
But unconfirmed reports of the contents of gruesome tape, which Turkey says it has been in possession of since October 2, allege that Khashoggi was grabbed, drugged and dismembered with a bone saw.
After Trump was inaugurated in January 2017, Nader met frequently with White House officials to discuss the economic sabotage plan.
Given his role as the senior diplomat in the consulate, Turkish authorities have been skeptical of the notion that Otaibi was an unwitting bystander to the killing.