President Donald Trump has re-tweeted three controversial videos from British far-right group Britain First.

The first tweet from Jayda Fransen, the deputy leader of Britain First, claims to show a Muslim migrant attacking a man on crutches.

It was followed by two more videos of people Jayda Fransen claims to be Muslim.

Responding to President Trump’s posts, UK PM Theresa May’s official spokesman said it was “wrong for the president to have done this”.

White House spokeswoman Sarah Sanders said PM Theresa May and other world leaders knew that “these are real threats that we have to talk about”.

“Whether it’s a real video, the threat is real,” Sarah Sanders said.

“I think it’s important to talk about national security and national security threats. The president sees different things to be national security threats, and he sees having strong borders as being one of the things that helps protect people in this country from some real threats that we face.”

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Britain First was founded in 2011 by former members of the far-right British National Party (BNP).

The far-right group has grabbed attention on social media with controversial posts about what they deem “the Islamification of the UK”.

The group has put up members to run in European elections and by-elections on anti-immigration and anti-abortion policies, but has not secured any seats.

Britain First also contested the most recent London mayoral election, receiving 1.2% of the vote.

The original video was shared by commentator Ann Coulter who Donald Trump follows.

Jayda Fransen has more than 52,000 followers on Twitter.

She responded enthusiastically to President Trump sharing her tweets.

Jayda Fransen posted on her account: “Donald Trump himself has retweeted these videos and has around 44 million followers!”

“God bless you Trump! God bless America!” she added.

The message was also shared on Britain First’s Twitter account.