Sean Penn working on documentary on Saudi writer's death

A Turkish official says Sean Penn is in Turkey working on a documentary about the slaying of journalist Jamal Khashoggi at the Saudi consulate in Istanbul.

READ: Recep Tayyip Erdogan Demands Saudis Extradite Suspects In Khashoggi Killing

Yasin Aktay, an adviser to Turkey's president, tells The Associated Press on Thursday, Decem that the two-time Oscar winner interviewed him in Ankara as part of his "preliminary preparations" for the documentary before leaving for Istanbul where he was due to meet with Khashoggi's Turkish fiancee.

READ: Jamal Khashoggi's Body Was Cut Alive In Seven Minutes, Killer Said 'he Liked It'

The Washington Post columnist who was critical of the Saudi crown prince was killed by Saudi agents on Oct.2 after arriving to handle routine paperwork.

Aktay, who was a friend of Khashoggi's, was the first to alert authorities that the journalist disappeared inside the consulate. Turkish media showed Penn filming in front of the consulate building Wednesday.

Khashoggi, a columnist for The Washington Post, was killed inside the Saudi consulate in Istanbul on October 2.