US President Donald Trump on Monday said that he spoke to Saudi King Salman over the disappearance of journalist Jamal Khashoggi and will send Secretary of State Mike Pompeo to discuss the situation with the monarch.

In a morning tweet, Trump said that the King denied any knowledge of the journalist's whereabouts. Khashoggi, a columnist for The Washington Post and a Saudi royal insider-turned-critic, entered his country's consulate in Istanbul, Turkey, on October 2 and has not been seen since.