"Saudi diplomats… should be expelled from the country. They should be declared personae non-gratae. Turkey should not cover up for criminals," Kilicdaroglu said while addressing the CHP parliamentary faction.
According to the Saudi Consulate General, Khashoggi disappeared after leaving the building. The Saudi diplomatic mission has said that it is cooperating with the Turkish authorities to determine the exact circumstances surrounding the journalist's disappearance.
The broadcaster has published surveillance camera images showing cars with these Saudi nationals approaching the Saudi Consulate General in Istanbul, and al-Tubaigy entering the building approximately an hour before Khashoggi's visit.
READ MORE: US Calls on Saudi Arabia to Conduct Probe into Khashoggi Disappearance
Turkish President Recep Tayyip Erdogan has said Saudi Arabia should prove that Khashoggi had, in fact, left the Saudi consulate in Istanbul.
The journalist's fiancee stayed outside waiting for Khashoggi for five hours before being told by one of the Consulate General's employees that her fiance had already left. Media reports have said that Turkish investigators believe the journalist was murdered inside the consulate, but Saudi Arabia has denied the allegations.