Police investigating party in Boris and Carrie Johnson’s flat

A party in Boris and Carrie Johnson's flat is one of 12 events being investigated by the Metropolitan police over alleged lockdown breaches, it has emerged, as the Sue Gray report found "failures of leadership and judgment" in No 10.

Gray, a senior civil servant, criticised the culture in Johnson's Downing Street that allowed social gatherings to take place during lockdown, which were "difficult to justify".

The findings were released on the government's website in a shortened and redacted form, after the Met last week said it was investigating some of the gatherings.

Although Gray said she was not able to publish her full report, a string of Conservative MPs said the conclusions were still extremely serious for Johnson - not least because one of the gatherings under police investigation was in the prime minister's apartment.

In the Commons, Johnson was challenged by Theresa May, his predecessor as prime minister, who said either he "had not read the rules, didn't understand the rules, or didn't think they applied to No 10".

Andrew Mitchell, a Tory MP and former cabinet minister, said Johnson "no longer enjoys" his support.

And in a dramatic moment, Ian Blackford, the SNP Westminster leader, accused Johnson of having "lied and misled" the house of Commons and was ejected from the chamber by the Speaker.