BORIS Johnson may be looking to sack one of his most senior Cabinet members amid a major Downing Street shake-up, according to the BBC’s political editor.

On Friday morning, the Prime Minister was having to consider a reshape of his inner circle after four key advisers resigned – making his battle to stay in Number 10 even tougher.

Ministers tried to argue the exodus was part of Johnson “taking charge” as he faces a potential leadership challenge amid allegations of rule-breaking parties in Downing Street.

But it appeared that the resignations were not over yet on Friday, as it was reported that Elena Narozanski had become the second adviser to quit the No 10 policy unit.

READ MORE: Boris Johnson allies mocked after tweeting the same 'spin' on No 10 exodus

Long-term ally to Johnson Munira Mirza quit as the director of that policy unit in anger over his use of a “scurrilous” Jimmy Savile smear against Labour leader Sir Keir Starmer.

Then, not long after, chief of staff Dan Rosenfield, principal private secretary Martin Reynolds and director of communications Jack Doyle followed her out of the door.

The three men were embroiled in the “partygate” scandal and energy minister Greg Hands suggested their departures were linked to a clear-out after civil servant Sue Gray’s inquiry into the allegations.

Speaking to the BBC’s Newscast programme, Laura Kuenssberg said Johnson’s allies would be keen to present these resignations as part of promised changes.

The National:

"Whether he does some of the other things he promised to MPs, we will see,” the journalist, who is due to leave her current post in the coming weeks, told listeners.

"Some say he promised to get rid of the chief whip and one MP suggested he said he would get rid of the leader of the House of Commons Jacob Rees-Mogg,” she added.

"That is not a proven claim but that is what one MP said that in good faith the PM told him personally.

"We will have to see whether that is enough for MPs."

The National:

Rees-Mogg has been a keen defender of Johnson throughout his various scandals in recent months.

Speaking after the “update” from Gray’s report was revealed, he said: “We’ve got to remember how well the Prime Minister has done in the general run of being Prime Minister.”

Rees-Mogg said Boris Johnson had a “determination to put things right” and added that “you can’t ignore a majority of 80”.

He went on: “So many people voted personally for Boris Johnson rather than voting for political parties.

“Politicians have to accept that our bosses are the British people, and they voted for that, they put him in office.”