Media companies are pulling out of a Saudi investment conference as outrage grows over the journalist who went missing inside a Saudi consulate in Turkey earlier this month.

Economist Editor-In-Chief Zanny Minton Beddoes will not participate in the Future Investment Initiative conference in Riyadh, spokeswoman Lauren Hackett said in an email.

Andrew Ross Sorkin, a CNBC anchor and New York Times business journalist, tweeted that he was also not attending the conference, saying he was "terribly distressed by the disappearance of journalist Jamal Khashoggi and reports of his murder."