MPs have called on Prime Minister Boris Johnson to resign following the publication of a report into parties held in Downing Street when coronavirus restrictions were in place.

The long-awaited Sue Gray report, delayed by a police investigation into the "Partygate" gatherings, gave details of events at which officials drank so much they were sick, became involved in altercations and abused security and cleaning staff at a time when millions of people across the country were unable to see friends and family.

The report said “senior leadership” in Number 10 must “bear responsibility” for the culture which led to lockdown rules being broken at a series of events in 2020 and 2021.

The Argus: Prime Minister Boris Johnson at a gathering in 10 Downing Street for the departure of a special adviser, which has been released with the publication of Sue's Gray report into Downing Street parties in Whitehall during the coronavirus lockdownPrime Minister Boris Johnson at a gathering in 10 Downing Street for the departure of a special adviser, which has been released with the publication of Sue's Gray report into Downing Street parties in Whitehall during the coronavirus lockdown

Addressing the House of Commons, the Prime Minister repeated his apology and said he was “humbled” by the experience and had learned his lesson.

He said: “I take full responsibility for everything that took place on my watch.

“Sue Gray’s report has emphasised that is up to the political leadership in Number 10 to take ultimate responsibility and, of course, I do.”

He also said he had been “as surprised and disappointed as anyone else” by the revelations in the report, and was “appalled” by the treatment of security and cleaning staff.

However, Green MP for Brighton Pavilion Caroline Lucas said that the Prime Minister’s statement was “meaningless without his resignation”.

She accused him of blatantly lying to the House of Commons and said: “As much as the PM tries to, he can’t hide from his own words”.

“Boris Johnson can only ‘move on’ by moving out of Number 10,” she said.

The Argus: Prime Minister Boris Johnson listens as Labour leader Keir Starmer responds to his statement to the House of Commons, London, following the publication of Sue Gray's reportPrime Minister Boris Johnson listens as Labour leader Keir Starmer responds to his statement to the House of Commons, London, following the publication of Sue Gray's report

Hove MP and shadow Northern Ireland secretary Peter Kyle said photos that accompanied the Sue Gray report, which show the Prime Minister at a gathering with a drink in his hand, “expose the rot at the heart of government".

He said: “Boris Johnson doesn’t know what ‘taking responsibility means. He blames everyone other than himself. Yet the blame rests with him.”

The inquiry’s findings included staff carrying on drinking in Number 10 until the early hours of the morning on the evening of the Duke of Edinburgh’s funeral, a then-senior adviser to the Prime Minister boasting of “seeming to have got away with” a bring-your-own-booze garden party, and one official drinking so much they were sick at one event.