She said the writer first visited the consulate on September 28 "despite being somewhat concerned that he could be in danger".
Turkey said Tuesday it will search the consulate as it investigates why journalist Jamal Khashoggi, a contributor to the Washington Post, vanished there October 2, an extraordinary probe of a diplomatic post amid Turkish officials' fears the writer had been killed inside the building.
Almost two hours later, the video shows two vehicles with diplomatic plates -a luxury black sedan and a black Mercedes VITO van- leave through the police barricades outside the consulate. An hour and 54 minutes later, according to the time stamp, a black Mercedes Vito with diplomatic license plates, which resembled a van parked outside of the consulate when the writer walked in, drives some 2 kilometers (1.2 miles) to the consul's home, where it parks inside a garage. Sources say the men stayed at the mission hours before and after Khashoggi entered the consulate, then moving on to the residence of the Saudi consul general a few hundred metres from the consulate itself.
A source told the Post that prior to Khashoggi going missing, US intelligence intercepted Saudi officials' communications, which revealed a plan to capture Khashoggi and get him to Saudi Arabia.
The kingdom has called the allegations "baseless", but has not provided any evidence that Khashoggi left the consulate and did not respond to requests for comment on Wednesday. They say Khashoggi left the Saudi consulate in Istanbul, where he was attempting to finalize his divorce, shortly after he arrived.
A United Nations human rights expert has said the investigation into the disappearance of a Saudi journalist in Turkey "should not be politicized", insisting the case has created a dilemma for the Turkish government.
The paper printed pictures of the 15 Saudi nationals that appeared to be taken by security cameras during police control at an airport.
The security sources told TRT World that the "hit squad" took CCTV footage from the Saudi consulate in Istanbul with them when they left Turkey. A video caption says seven other men checked in at another nearby hotel at different times.
The fiancée of a missing Saudi contributor to The Washington Post is asking President Donald Trump and first lady Melania Trump to "help shed light" on his disappearance. He is an outspoken critic of Saudi Arabia who has dared to defy Crown Prince Mohammed bin Salman, the kingdom's de facto ruler.
Writer Jamal Khashoggi, who had written critically about Prince Mohammed and the kingdom, vanished October 2 while on a trip to the consulate to get paperwork so he could be married to Cengiz.
A Turkish TV station has aired CCTV footage of missing dissident journalist Jamal Khashoggi walking into the Saudi Consulate in Istanbul last Tuesday, with a black van later arriving and presumably taking him away.
The revelation comes amid a claim that the Saudi team that flew to Turkey brought with it a bone saw to dismember Khashoggi.
Before Khashoggi disappeared, U.S. intelligence intercepted communications of Saudi officials discussing a plan to grab him, the Washington Post reported.
The team arrived in Istanbul on two private planes, one of which landed after 3 a.m. (0000 GMT) on Tuesday while the second plane landed around 5 p.m. (1400 GMT) after Khashoggi entered the consulate.
Tuesday's statement from the Turkish Foreign Ministry's spokesman, Hami Aksoy, said Saudi authorities had notified Ankara that they were "open to cooperation" and would allow the consulate building to be searched.