Saudi minister of state for foreign affairs Adel al-Jubeir told the US TV programme Face the Nation on Sunday they do not need a UN or international investigation into the murder of journalist Jamal Khashoggi, as its "competent legal system" can handle the matter.
Al-Jubeir says the slaying of the journalist inside the Saudi consulate in Turkey was "a massive tragedy" and denied it was sanctioned by Saudi Arabia's leadership.
Eleven suspects have been indicted and referred to trial in Saudi Arabia with five facing the death penalty.
The proceedings have been private.