LONDON – Introducing a new policy on hate speech, Twitter has suspended the accounts of far-right group Britain First’s leaders, including Jayda Fransen, whose anti-Muslim videos stirred up a political storm after Donald Trump shared them.

“Today, we are starting to enforce these policies across Twitter. In our efforts to be more aggressive here, we may make some mistakes and are working on a robust appeals process,” Twitter said, The Telegraph reported.

“We’ll evaluate and iterate on these changes in the coming days and weeks, and will keep you posted on progress along the way,” the social media company added.

In the first application of the new rules, Twitter banned Fransen’s account on Monday.

Britain First 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.