Mr Khashoggi, a US resident and Washington Post columnist critical of Riyadh’s policies, disappeared on Oct 2 after entering the Saudi consulate in Istanbul. Turkey believes he was murdered and his body removed. Saudi Arabia has denied that.
US President Donald Trump has threatened “severe punishment” if it turns out Mr Khashoggi was killed in the consulate, though he said Washington would be “punishing” itself if it halted military sales to Riyadh.
