Turkish TV has aired video from CCTV linked to the disappearance of Saudi journalist Jamal Khashoggi.
Mr Khashoggi, a critic of the Saudi monarchy, visited the Saudi consulate in Istanbul on 2 October but has not been seen since.
The TV also showed what it says are Saudi men connected with his disappearance entering Turkey via Istanbul airport.
Turkish security sources say he was killed. Saudi Arabia denies this.
Broadcast by Turkey's TRT World channel and apparently garnered from security camera video, the footage shows vehicles driving up to the consulate, including black vans thought to be central to inquiries.
Groups of Saudi men are seen entering Turkey via Istanbul airport, checking in at hotels and later leaving the country.
Chartered Saudi aircraft wait on the tarmac.
Mr Khashoggi was visiting the consulate to finalise his divorce so he could marry his Turkish fiancée Hatice Cengiz.
He is seen entering the consulate. His fiancée waits outside.
Meanwhile, Turkey's Sabah newspaper reports that it has identified 15 members of an intelligence team it says was involved in the Saudi's disappearance.
The UK's foreign secretary has told Saudi Arabia that Britain expects urgent answers over the disappearance of Mr Khashoggi.
Crown Prince Mohammed's brother and the Saudi ambassador to the US, Prince Khaled bin Salman al-Saud, has insisted all the reports about his disappearance or death "are completely false and baseless".
BBC Online
BDST: 1616 HRS, OCT 10, 2018
SI