A joint Turkish-Saudi team will investigate the disappearance of Saudi journalist Jamal Khashoggi upon the Kingdom’s request, said the Turkish president’s aide on Oct. 12, as pressure mounted on Riyadh.

Speaking to the state-run Anadolu Agency, İbrahim Kalın said: “Within the framework of a close cooperation between Turkey and the Kingdom of Saudi Arabia and upon the suggestion of the Kingdom, a joint working team between Turkey and Saudi Arabia will be formed to investigate the case of Jamal in all its aspects.”

A delegation from Saudi Arabia arrived in Turkey on Oct. 12, according to diplomatic sources.

More: Turkish-Saudi team to probe missing journalist case as pressure mounts on Riyadh