Boris Johnson is facing fresh allegations of breaking coronavirus rules after claims staff gathering to wish him a happy birthday inside Number 10 during the first lockdown.
ITV News reports Downing Street staff "gathered briefly" in the Cabinet Room after a meeting, with claims that up to 30 people were present.
It is claimed staff joined in a chorus of "happy birthday" on June 19, 2020, when indoor social mixing was banned.
READ MORE: When Sue Gray report into Downing Street lockdown parties will be released
Interior designer Lulu Lytle admitted attending while she was carrying out renovation work to their flat above Number 11 Downing Street, but insisted she was only present "briefly" while waiting to talk to Mr Johnson.
A Number 10 spokeswoman said: "A group of staff working in No 10 that day gathered briefly in the Cabinet Room after a meeting to wish the Prime Minister a happy birthday. He was there for less than 10 minutes."
They added: "Lulu was not invited to any birthday celebrations for the Prime Minister as a guest.
"Lulu entered the Cabinet Room briefly as requested, while waiting to speak with the Prime Minister."
The latest allegation comes after reports of parties taking place in the Downing Street garden on May 15 and May 20, 2020.
Further gatherings are alleged to have taken place during November and December 2020, as well as on April 16, 2021 - the night before the Duke of Edinburgh's funeral.
An inquiry into parties said to have been held at Downing Street is ongoing, led by senior civil servant Sue Gray.
Initially, the inquiry was due to look at alleged gatherings inside Downing Street on November 27 and December 18, 2020, as well as one at the Department for Education on December 10.
The Cabinet Office has since confirmed that reports of two parties held the day before Prince Philip's funeral, will also be included.
Boris Johnson has urged politicians to wait for the results of the inquiry amid rumours of a leadership challenge.
The Prime Minister continues to face calls to step down, with one MP defecting to Labour on Wednesday.
On Thursday, Health Secretary Sajid Javid made clear that if Mr Johnson was found to have broken the law he would have to go.
He said: "The Ministerial Code is very clear. If any minister from the Prime Minister down breaks the law, of course they shouldn't continue to serve as a minister.
"What I have just said is a general rule that applies to everyone. There is no exception to that rule."
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