Hollywood actor Sean Penn was spotted outside the Saudi Consulate in Istanbul on Wednesday, December 5, where he is said to be filming a documentary on Jamal Khashoggi’s murder, the Saudi journalist who was killed inside the same building on October 2.

Pictures posted by Turkey's state-run Anadolu news agency showed the politically-active actor surrounded by a camera crew and bodyguards outside the infamous building.

Penn was also seen filming outside the consul general's nearby residence, the agency said.

Khashoggi had gone into the Consulate to obtain marriage-related paperwork for him and his Turkish fiancee Hatice Cengiz. He was strangled death before his body was cut up into pieces by a 15-man Saudi mission, who flew into Istanbul especially for the task.

The whereabouts of Khashoggi’s remains are still unknown.

The Oscar-winning star is reportedly expected to meet with Cengiz during his visit, according to reports by Turkish newspaper Daily Sabah.

Khashoggi was a vocal critic of the Saudi government and Crown Prince Mohammed bin Salman and a columnist for the Washington Post; he was a US resident.

Saudi Arabia had originally denied any involvement in the murder, however, an international outcry forced Riyadh to acknowledge that “Saudi officials had planned and executed the killing, blaming a ‘rogue’ team,” Al Jazeera reported.

The CIA has reportedly assessed that Prince Mohammed bin Salman ordered the killing of Khashoggi.

So far, 21 people, including security officers, have been arrested in Saudi Arabia in connection with the killing.