President Donald Trump said he needs to learn more about the killing of a Saudi journalist and will be working with Congress on the U.S. response.
Speaking late Saturday after a campaign rally in Nevada, he said he will be talking to Saudi Crown Prince Mohammed bin Salman soon.
Saudi authorities have said Khashoggi died in a "brawl" with Saudi officials at the Saudi Consulate in Istanbul on Oct. 2, the latest in a series of conflicting explanations for his death. The country's explanation has sparked allegations of a cover-up intended to shield the powerful crown prince. Turkish officials suspect a team of Saudi agents was sent to assassinate him.
Trump initially said he believed the Saudi account, but on Saturday he said he still does not know where Khashoggi's body is.
Trump said: "We'd like to find out where it is and what happened... And I think we're inching our way there."
Meanwhile, the European Union said the emerging details of Khashoggi's death are "deeply troubling" and that a "continued thorough, credible and transparent investigation" is needed.
Saudi Arabia said 18 Saudi suspects were in custody and intelligence officials had been fired. But critics believe the complex scheme that led to Khashoggi's death could not have occurred without the knowledge of Mohammed bin Salman.
The EU said the continuing investigation should bring "proper clarity on the circumstances of the killing and ensuring full accountability of all those responsible for it."