Sue Gray has published nine pictures of covid lockdown breaking parties in Downing Street in her explosive report.
The senior civil servant's 37-page report has criticised the culture at the heart of the UK Government.
Prime Minister Boris Johnson is set to make a statement to the House of Commons following PMQs at around 12.30pm, he will then take more questions from MPs.
Following his appearance in the Commons he will hold a press conference and address Tory MPs at the 1922 committee.
Opposition leaders are calling for the Tory PM to resign following the damning report.
The report by Sue Gray said the public would be "dismayed" by a series of breaches of coronavirus rules in No 10 and Westminster.
"The events that I investigated were attended by leaders in government. Many of these events should not have been allowed to happen," she said.
The Metropolitan Police has issued 126 fines for rule breaches in No 10 and Whitehall, with the Prime Minister receiving a single fixed-penalty notice for his birthday party.
But senior civil servant Gray condemned the wider culture that had been allowed to develop under Johnson's leadership.
She said some of the more junior officials who attended parties "believed that their involvement in some of these events was permitted given the attendance of senior leaders".
"The senior leadership at the centre, both political and official, must bear responsibility for this culture," Gray said.
Here are the nine pictures that Sue Gray published in her report:
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