"We want to know where the body [of Khashoggi] is, we want that our authorities receive information about who the local collaborators are", Çelik said. "This is not an incident that could have taken place without a high-level order".
The Saudis say they have arrested 18 suspects, 15 of which were members of a death squad sent to kill Khashoggi.
Following the worldwide outrage over the macabre circumstances on Jamal Khashoggi's case, the Saudi public prosecutor reversed its statement and declared that the killing was premeditated.
Dons to receive 20000 tickets for Betfred Cup final against Celtic
I do feel losing the two finals that year was tough on us. We can't have them round here. "It's the wrong place". It is cut-throat - that is the way it is.
The Saudi chief prosecutor arrived in Turkey on Sunday to meet with his Turkish counterpart.
Saudi Arabia has not commented directly on the prosecutor's visit and al-Mojeb did not respond to journalists' questions at the airport as he departed. His Turkish fiancee was waiting for him outside.
In wake of the murder, Germany suspended export licenses to Saudi, while US Secretary of State Mike Pompeo invalidated visas of Saudi officials who are believed to be part of the plot to murder the journalist.
Mojeb was the first Saudi official to acknowledge that the killing was "premeditated" based on the results of Turkey's investigation.
Under mounting global pressure, Saudi Arabia has changed its narrative about Khashoggi's killing several times, and has recently acknowledging that Turkish evidence shows it was premeditated.