U.S. President Joe Biden said on Friday he told Saudi Arabia's Crown Prince Mohammed bin Salman he held him responsible for the murder of Washington Post journalist Jamal Khashoggi, shortly after exchanging a fist bump with the kingdom's de facto ruler.

On a trip to reset relations with a country he had called a pariah after Khashoggi's killing in 2018, Biden said the crown prince, known as MbS, denied involvement in the murder and said he had held those responsible to account.

"With respect to the murder of Khashoggi, I raised it at the top of the meeting, making it clear what I thought of it at the time and what I think about it now," Biden told reporters.