The United States is not covering up the murder of Saudi journalist Jamal Khashoggi, the US Secretary of State has said.

Speaking during a visit to Hungary, Mike Pompeo said that the US will continue to investigate the murder of Mr Khashoggi at the Saudi consulate in Istanbul.

"America is not covering up for a murder," he said, adding that the US would take more action to hold accountable all those responsible for his death.

The US-based journalist was killed inside the consulate in October 2018.

After initially denying his death, Saudi Arabia has confirmed that its agents killed him but denied its senior leaders were behind the killing.

The Trump administration had faced a 8 February deadline to submit a report to Congress on who was responsible for Mr Khashoggi's death and whether the US would impose sanctions on those behind the killing.

On Friday, a State Department representative said Mr Pompeo had briefed politicians on the murder investigation but gave no other details.

Democratic US Senator Tim Kaine, a member of the Senate Armed Services and Foreign Relations committees, said yesterday the required report was not submitted.

"This amounts to the Trump administration aiding in the cover-up of a murder," Mr Kaine said in a statement. "America should never descend to this level of moral bankruptcy."