The remains of slain Washington Post columnist Jamal Khashoggi should be located and returned to his family for burial as soon as possible, the U.S. said Thursday.

State Department spokesman Robert Palladino told reporters Washington will "hold accountable not only those who executed the murder, but also those who led, were involved and were connected to it."

Khashoggi has been missing since Oct. 2 when he entered the Saudi Consulate in Istanbul. After offer varying explanations for his disappearance, Saudi Arabia acknowledged he was killed in the diplomatic facility, but sought to shift the blame for his slaying on a "rogue operation."

Riyadh has been mum on the location of Khashoggi's remains.