ISTANBUL, TURKEY - OCTOBER 15: Turkish officials arrive at the Consulate General of Saudi Arabia in Istanbul, Turkey after the start of a joint probe of the case of missing journalist Jamal Khashoggi on October 15, 2018. An acting chief prosecutor and a public prosecutor were assigned by Istanbul Chief Public Prosecutor's Office to carry out the probe at the consulate. Also, specialists from anti-terror branch and crime scene investigation units of Istanbul Provincial Security Directorate are included to the team. Khashoggi, a journalist and columnist for The Washington Post, has been missing since he entered the Saudi consulate in Istanbul on Oct. 2. Emrah Yorulmaz / Anadolu Agency