Twitter has suspended Jayda Fransen, the deputy leader of far-right group Britain First, whose anti-Muslim videos caused a diplomatic storm when they were shared by Donald Trump last month.

Fransen's account was banned on Monday along with a number of other far-right individuals as the social media company introduced a new policy on hate speech.

The official Britain First Twitter account, that of its leader Paul Golding, the American white nationalist Jared Taylor and the American Nazi party were also suspended in a major crackdown. Twitter has been repeatedly criticised for failing to deal with abuse and hate speech online, but has vowed to do more in recent months.

In November, Fransen posted three unverified anti-Muslim videos including ones titled "Muslim Destroys a Statue of Virgin Mary!" and "Muslim migrant beats up Dutch boy on crutches!" They were retweeted by the US president, leading to international condemnation, including from Theresa May.

The incident threatened to imperil US-UK relations when Mr Trump then hit back at the Prime Minister. "Theresa, 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!" he wrote at the time.