Elon Musk h as declared war on a Labour-linked online campaign group founded by Sir Keir Starmer

The X owner accused the Centre for Countering Digital Hate (CCDH) of violating rules “against foreign interference in elections”.

Mr Musk wrote on the social media platform: “We are going after CCDH and their donors.”

The billionaire Tesla founder was responding to the Disinformation Chronicle newsletter which claimed to have uncovered a strategy document from the CCDH which included a plan to “Kill Musk’s Twitter”.

The reports claim the organisation had been seeking meetings with Democratic senators as it lobbied against Mr Musk’s running of X.

The CCDH was launched by Morgan McSweeney, who replaced Sue Gray as the Prime Minister’s chief-of-staff earlier this month after a Downing Street power struggle.

Mr McSweeney has not been involved with the company, which describes itself as working to stop the spread of online hate and misinformation, since 2020.

It is the latest in a long-running war of words between Mr Musk and the CCHD.

It comes as the X owner has criticised Labour after Republican presidential candidate Donald Trump accused Sir Keir’s party of election interference over staffers heading to the US to campaign for Demcocrat Kamala Harris, which they have denied.

A CCDH spokesman said: “The CCHD works to stop the spread of online hate and disinformation through innovative research and policy advocacy. We are not supported, advised, or financed by any political party or organisation.

“Our mission is to protect human rights and civil liberties online and we will continue to fight for changes to outdated legislation that continues to allow social media platforms to run rampant with dangerous disinformation that causes harm to children and people around the world.

“The CCHD researches conspiracy theories, we do not engage with them.”