Witnesses have told the BBC the PM and his wife attended the gathering on 20 May 2020. But Boris Johnson has declined to say whether he was among those there.
An email, revealed by ITV News, invited people to “socially distanced drinks in the No 10 garden this evening”. It was sent when lockdown restrictions were still in place. Twelve days later - on 1 June - rules in England were relaxed to allow groups of up to six people to meet outside.
Downing Street declined to comment as it said the gathering - like others reported to have happened under coronavirus restrictions during 2020 - is now being looked into as part of an ongoing independent investigation.
The Liberal Democrats have called for a police investigation, and a Met spokesperson said the force was “aware of widespread reporting relating to alleged breaches of the Health Protection Regulations at Downing Street on 20 May 2020 and is in contact with the Cabinet Office”, which oversees government policy.
ITV News has now published what appears to be the full email invitation sent on behalf of Mr Johnson’s principal private secretary, Martin Reynolds. It has the subject line “Socially Distanced Drinks! [OFFICIAL-SENSITIVE-No 10 ONLY]”.
“After what has been an incredibly busy period we thought it would be nice to make the most of the lovely weather and have some socially distanced drinks in the No 10 garden this evening,” the email says. Please join us from 6pm and bring your own booze."**
On the same day as the gathering, the then Culture Secretary, Oliver Dowden, gave the Downing Street coronavirus briefing - in which he confirmed another 363 people in the UK had died with Covid in the previous 24 hours.
At the briefing, he told the public: “You can meet one person outside of your household in an outdoor, public place provided that you stay two metres apart.”
In a Twitter post on the day of the gathering, when it was 25C (77F) in London, the Metropolitan Police reminded people they could only relax or exercise outside on their own, with their own household or one person from another household. rule breaking
The Metropolitan Police said it was in contact with the government over “widespread reporting relating to alleged breaches” of Covid rules.
Apparently, this is ANOTHER No 10 party, 5 days after the already-reported pizza party - how many more …