BORIS Johnson has been openly mocked on prime time television over his government’s unconvincing response to claims that Christmas parties were held at Number 10 last year.

I’m A Celebrity co-hosts Ant McPartlin and Declan Donnelly poked fun at the Prime Minister, who they suggested might not be in the job for much longer.

The presenting duo jokingly referenced the allegations during Tuesday’s episode of the ITV series, saying that the show’s contestants “categorically deny” any suggestion they had a party in the Welsh castle.

While introducing the next segment on I’m A Celebrity, Donnelly said: “It is all changing in camp now because yesterday the celebs chose a new leader via the gift of a secret vote.”

McPartlin continued: “And that means David’s reign is over. But they weren’t celebrating. They categorically deny any suggestions that they had a party.

“And this fictional party definitely didn’t involve cheese and wine, or a Secret Santa.”

Donnelly then looked directly into the camera and said: “Evening Prime Minister … for now.”

WATCH: Downing Street staff joke about Christmas party days after it allegedly happened

It comes as it was revealed senior aides to Johnson joked about a Downing Street Christmas party just days after staff are alleged to have held a festive gathering in breach of lockdown rules.

The Prime Minister’s then press secretary Allegra Stratton and adviser Ed Oldfield, along with other aides, were filmed joking about a “fictional” party in December 2020 in a video from a mock press conference obtained by ITV News.

The Metropolitan Police announced it is reviewing the footage, stating: “We are aware of footage obtained relating to alleged breaches of the Health Protection Regulations at a Government building in December 2020.

"It is our policy not to routinely investigate retrospective breaches of the Covid-19 regulations, however the footage will form part of our considerations.”

On Tuesday, Downing Street again insisted there was no Christmas party and coronavirus rules had been followed at all times.