Twitter has caved in to pressure to curb the activity of extremists, including far right fanatics and terrorist sympathisers.
On Monday, the social media site began to enforce new rules to cut down on abusive content by suspending Jayda Fransen, deputy leader of Britain First, whose anti-Muslim videos sparked controversy when they were shared by Donald Trump last month.
Others who were also barred were Paul Golding, leader of Britain First, Jared Taylor, a white US nationalist, and the American Nazi party.
Twitter has previously been criticised for being slow to act on such online abuse, but has pledged to do more in recent months.