The Turkish crime investigation team of around 10 people left the consulate around 5am on Tuesday. It remained unclear what evidence they might be able to uncover.
President Donald Trump on Monday talked to the Saudi King, during which the latter flatly denied having any knowledge of the missing journalist.
President Donald Trumptold reporters Monday that he was aware of the report but did not know if it was correct.
However, left unsaid was the fact that any decision in the ultraconservative kingdom rests exclusively with the ruling Al Saud family.
The person said Prince Mohammed had approved an interrogation or rendition of Mr. Khashoggi back to Saudi Arabia.
The disappearance of the Saudi dissident has cast a different light on bin Salmon, whom press reports last spring dubbed "Prince Charming".
"The effort behind the scenes is focused on avoiding a diplomatic crisis between the two countries and has succeeded in finding a pathway to de-escalate tensions", said Ayham Kamel, the head of the Eurasia Group's Mideast and North African practice.
Trump suggested that "rogue killers" could be responsible. But, he said, the Saudi intelligence official was tragically incompetent as he eagerly sought to prove himself in secretive operations.
Amidst global outrage, CNN on Monday reported that the Saudis are preparing a report that will acknowledge that Khashoggi's death was the result of an interrogation that went wrong. Bernie Sanders (I-Vt.) told CNN on Sunday. He was last seen entering the Saudi consulate on October 2.
Several Turkish officials have voiced concerns that he was murdered in the consulate.
Khashoggi, who recently has been living in Virginia and writing columns for The Washington Post, hasn't been seen since October 2, when he entered the Saudi Consulate to handle paperwork for his upcoming marriage. "Obviously, he is very, very serious".
Riyadh has struck back at the allegations, calling them "lies" and threatening retaliation over any possible economic sanctions by United States or other western countries. "That's going to be a problem".
Cengiz said she waited outside the consulate for hours but Khashoggi never came out.
Turkey had wanted to search the consulate for days.
On Monday, King Salman ordered an investigation into the case.
"Something this big would definitely spook investors, and Saudi just opened up for foreign direct investment, so that was big", said Issam Kassabieh, a financial analyst at Dubai-based firm Menacorp Finance.
Shortly after the cleaning crew entered the Saudi consulate, a team of investigators arrived in an unmarked police vehicle to begin an inspection of the building a full 13 days after Khashoggi entered to obtain marriage documents and never reemerged.
The problem with that is that there's been already a lot of questions about Mohammed bin Salman. Prince Mohammed told Reuters previous year that Blackstone and BlackRock Inc were planning to open offices in the kingdom.
But in the wake of Khashoggi's disappearance, many media and entertainment companies have been distancing themselves from the kingdom.
He has already ruled out halting a proposed $110 billion arms sale to Saudi Arabia because of the impact it would have on American jobs.
Khashoggi was once a prominent member of the Kingdom of Saudi Arabia and a top adviser to the royal family.