Their return, after bans for hate speech violations, has been criticised by campaigners.
Anti-Islam activist Tommy Robinson has had his account reinstated on social media platform X, formerly Twitter.
Robinson, whose real name is Stephen Yaxley-Lennon, was reinstated alongside political commentator Katie Hopkins.
Hopkins was banned in 2020 and Robinson’s account was suspended in 2018 – Twitter accused both of breaking its rules on hateful conduct.
A number of controversial figures have been allowed back on the platform since it was bought by Elon Musk last year.
In November 2022, Mr Musk – a self-styled « free speech absolutist » – announced a « general amnesty » to suspended accounts that had « not broken the law or engaged in egregious spam ».
Research by BBC Monitoring found that of 1,100 reinstated accounts it examined, nearly 190 were promoting hate and violence.