Donald Trump has said media speculation that Secretary of State Rex Tillerson will soon leave his job is "fake news".
The US president responded on Twitter to widespread reports attributed to White House officials describing a plan to oust Mr Tillerson and replace him with CIA director Mike Pompeo.
Mr Trump said it is incorrect that he "fired Rex Tillerson" or that the secretary will be leaving soon. He added that Mr Tillerson is "not leaving".
The president said he and Mr Tillerson disagree on some subjects but added that "I call the shots". He said that he and Mr Tillerson "work well together" and that the US is once again "highly respected".
His tweet links to a photograph of Mr Tillerson being sworn into office earlier this year in the Oval Office while Mr Trump and Vice President Mike Pence look on.