Trump strategist Steve Bannon fired

Steve Bannon has been fired from his role as chief strategist to US president Donald Trump following a review of his position by newly-appointed White House chief of staff John Kelly.

Bannon, a right-wing nationalist, was formerly the executive chairman of right-wing publication Breitbart news and a key member of Trump’s election campaign team.

The news was confirmed by White House press secretary Sarah Huckabee Sanders.

"White House chief of staff John Kelly and Steve Bannon have mutually agreed today would be Steve's last day," Sanders said in a statement on Friday. "We are grateful for his service and wish him the best."

Sources reportedly close to Bannon have said he was not expected to resign on his own.

"Bannon is going to make them fire him. He's not going to officially resign. He’s still been doing the work. He’s been working on projects," said the source.

He is the latest in a string of high-profile dismissals, after press secretary Sean Spicer, chief of staff Reince Priebus and Anthony Scaramucci were all fired in July, just seven months into Trump’s tenure.

Bannon had been described in recent months as being the nucleus of one of several competing power centres in what has been a very chaotic White House.