His statement to a parliamentary committee will coincide with the opening of a major investment conference in Riyadh that has seen several world and business leaders pull out as the scandal around Khashoggi's death grows.
One vehicle visited the Belgrad Forest, a large forest area on the outskirts of Istanbul, while the other vehicle went to the city of Yalova, an hour's drive from the consulate.
Khashoggi speaks during an interview at an undisclosed location.
Surveillance footage allegedly provided by Turkish authorities to CNN purports to show Khashoggi's lookalike, named as Mustaka al-Madani, leaving the Saudi Consulate in Istanbul via the rear entrance, wearing the journalist's own clothes that he wore on October 2.
After a fortnight of denials, Saudi authorities admitted Saturday that Khashoggi, a Washington Post columnist and prominent critic of powerful Crown Prince Mohammed bin Salman, was killed after entering the consulate.
The latest account includes details on how the team of 15 Saudi nationals sent to confront Mr Khashoggi had threatened him with being drugged and kidnapped and killed him in a chokehold when he resisted.
However, the new narrative - that Khashoggi was accidentally strangled after a brawl erupted between him and officials inside the consulate - was greeted with scepticism and condemnation from the global community.
On the day Khashoggi disappeared, Cengiz waited for hours outside the consulate for him and, when he did not return, got in touch with authorities as he had instructed her to do, she later said.
Jamal Khashoggi (L) near the Saudi consulate in Istanbul on October 2, as an alleged Saudi agent Mustafa al Madani (R), dressed as a Khashoggi body double, passes by on the day of the journalist's murder, in this video released by CNN, Octber 22, 2018.
Nicola Sturgeon video backs mass rally for the People’s Vote
He said: 'I can't think of anything more democratic, anything more British, than trusting the judgement of the British people. Organisers say 600,000 people have turned out for the People's Vote march.
CNN's Clarissa Ward reported on CNN's New Day is reporting that among the Saudi operatives sent to Istanbul to murder Washington Post columnist Jamal Khashoggi was a "body double" created to mislead via surveillance footage.
Three days after the journalist vanished, Prince Mohammed told Bloomberg that Khashoggi was not inside the consulate, adding "we are ready to welcome the Turkish government to go and search our premises".
"We ought to suspend military sales, we ought to suspend certain security assistance and we ought to impose sanctions on any of those that were directly involved in this murder", Schiff said.
Mr Jubeir said the Saudis offered its condolences to Mr Khashoggi's family.
A Saudi official, who spoke to The Post on the condition of anonymity to discuss the investigation, refused to confirm the details of the Reuters report but said that there had been a standing order from Saudi intelligence to "negotiate with people outside to come back home".
She said Germany would discuss further "reactions" to the case with its worldwide partners.
The statement, calling the journalist's death "tragic", says the two presidents had a telephone call on Sunday, without providing more details. "So we have to use oil reserves", he said. Twenty consulate workers, including the consul's driver, gave statements to prosecutors in relation to the incident last week, NTV has reported previously.
Britain, Germany and France have issued a joint statement condemning the killing of writer Jamal Khashoggi, saying there is an "urgent need for clarification of exactly what happened".
German Chancellor Angela Merkel announced the suspension of weapons sales to Saudi Arabia on the grounds that they can not be done under the "current circumstances", in reference to the Khashoggi case.