TWO more senior aide's to Boris Johnson have resigned in the wake of the partygate scandal, reports say.

Martin Reynolds, the PM's Principal Private Secretary (PPS) who sent the "bring your own booze" email to over 100 Number 10 staff, and Dan Rosenfield, Downing Street's chief of staff, both handed in their notice on Thursday afternoon.

It comes on a stormy day for the PM, as two other close aides quit earlier on Thursday, taking the total number of resignations to four. 

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First, Munira Mirza, who had been one of the PM’s most loyal and longstanding advisers, quit over his use of a “scurrilous” Jimmy Savile smear against Labour leader Keir Starmer.

Next came the resignation of Jack Doyle, No 10’s director of communications who was embroiled in allegations of lockdown-breaching parties in Downing Street.

And now, Reynolds and Rosenfield are now set to leave Number 10 too. 

The National:

Reynolds, left, has handed in his resignation to the PM, right

A Number 10 spokesman said: "Dan Rosenfield offered his resignation to the Prime Minister earlier today, which has been accepted.

"Martin Reynolds also informed the Prime Minister of his intention to stand down from his role as Principal Private Secretary and the Prime Minister has agreed to this.

"He has thanked them both for their significant contribution to government and No 10, including work on the pandemic response and economic rescovery.

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"They will continue in their roles while successors are appointed, and recruitment for both posts is under way."

Officials said Reynolds will return to the Foreign Office.

Reynolds was revealed as the senior aide who invited other staff to a "BYOB" party in the Downing Street garden to “make the most of the lovely weather”.

It was reportedly sent to more than 100 employees in No 10, including the Prime Minister's advisers, speechwriters and door staff.

The National:

Reynolds, left, and Rosenfield, right, have both resigned

The Prime Minister's PPS acts as the head of the PM's office and in the civil service.

Reynolds has worked as Johnson's PPS since 2019, but also worked with him in the Foreign Office during his tenure as Foreign Secretary under Theresa May

Rosenfield took on the role of chief of staff in December 2020.

He previously worked as a Treasury official, a banker and a security consultant before making the move to Downing Street.

In the Treasury he served as private secretary to Alistair Darling during the Labour administration, and subsequently in the same role under George Osbourne when the Tories took over.