Prime Minister Boris Johnson is being investigated for a possible breach of Commons rules related to his £15,000 trip to Mustique.
During the campaign for the May elections, the list of MPs under investigation had been kept private but it has now been revealed by independent commissioner, Kathryn Stone.
The list has revealed that Ms Stone is looking into Boris Johnson’s 2019 trip to the island of Mustique – a private island in the archipelago nation of St Vincent and the Grenadines – with his partner, Carrie Symonds.
When Mr Johnson declared the holiday in the register of MPs’ interests, he said he had accepted “accommodation for a private holiday for my partner and me, value £15,000” and cited Tory donor David Ross – former Deputy Chairman of Carphone Warehouse – as the provider.
But Mr Ross then denied he had paid for the holiday and said he did not own the villa where Johnson and his fiancée stayed.
Ms Stone’s probe will concentrate on who actually paid for the holiday and whether he breached Paragraph 14 of the MPs’ standards code, which states that parliamentarians must “fulfil conscientiously the requirements of the House in respect of the registration of interests.”
She is also acting on a complaint submitted by the Labour MP Margaret Hodge, which called on parliament’s watchdog to look into who originally paid for the lavish renovations of Mr Johnson’s flat.
The Prime Minister has repeatedly failed to deny that the Conservative Party or multiple Tory donors paid out for works that could have cost up to £200,000.
Reacting to the news, Labour deputy leader Angela Rayner said: “Another day, another investigation into Boris Johnson for more sleaze and dodgy dealings.
“The public have a right to know who paid for Boris Johnson’s luxury Caribbean holiday and the renovation of his flat.
“Most importantly, we need to know what these donors were promised or expected in return for their generosity.
“As we have seen over the last year, Tory donors have received a very high return on their investment in the form of government contracts.
“Boris Johnson needs to stop using the office of Prime Minister as an opportunity to fund his lavish lifestyle and enrich his mates.”