United States President Donald Trump today rejected as 'fake news' the media reports of ouster of his Secretary of State Rex Tillerson but acknowledged his disagreements with his top diplomat.

For the past two days, US media has been reporting that the White House has planned to replace Tillerson with the Central Intelligence Agency Director Mike Pompeo as the new Secretary of State.

Both the White House and the State Department have refuted the reports.

'The media has been speculating that I fired Rex Tillerson or that he would be leaving soon - FAKE NEWS!' Trump said in a tweet.

'He's not leaving and while we disagree on certain subjects, (I call the final shots) we work well together and America is highly respected again!' Trump said as he linked the tweet to the swearing-in of Tillerson in his Oval Office early this year.

Tillerson would be leaving Monday on a three-nation European tour. -- PTI