United States President Donald Trump on Friday threatened to cancel the White House press briefings and instead issue written responses to questions 'for accuracy', escalating his tiff with the media that has questioned the administration's shifting stance on the Federal Bureau of Investigation chief's firing.

Describing himself as a 'very active president', Trump said it was becoming very difficult for his surrogates to explain things with perfect accuracy to reporters at the news conferences.

'...Maybe the best thing to do would be to cancel all future 'press briefings' and hand out written responses for the sake of accuracy???' Trump said in a series of tweets.

His latest attack on the media came after his administration's shifting narrative on the firing of James Comey as FBI chief was questioned by the media.

The president's advisers said this week that Trump fired Comey in response to a recommendation by Deputy Attorney General Rod Rosenstein.

Later, however, they said that Trump had planned to fire Comey regardless.

Slamming the media, Trump said, "The Fake Media is working overtime today!"

Trump's comments came after acting FBI Director Andrew McCabe directly contradicted the White House's claims that the 'rank and file' agents had lost faith in Comey. -- PTI