Theresa May and Donald Trump in New York during the UN General Assembly in September 2017

Donald Trump has sparked an unprecedented diplomatic spat after telling Theresa May to mind her own business following criticism of the US President's latest tweets.

Mr Trump shared three Islamophobic videos posted by the deputy leader of far-right organisation Britain First on Wednesday to widespread condemnation.

The Prime Minister's office earlier said the billionaire was “wrong” to have retweeted the messages featuring the misleading videos.

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Her spokesperson added: “British people overwhelmingly reject the prejudiced rhetoric of the far right which is the antithesis of the values that this country represents – decency, tolerance and respect.”

The US President responded “Theresa @theresamay, don’t focus on me, focus on the destructive Radical Islamic Terrorism that is taking place within the United Kingdom. We are doing just fine!”