Police say some young people have been force to leave the island as a result of the issue.
Amanda Rees is the latest former employee of the Welsh language broadcaster to file a High Court claim.
A Holyrood review found 45 reports of bullying, 25 of harassment and 14 of sexual harassment since 2021.
Children at Bishop Chavasse school in Tonbridge have been given special training to tackle bullying.
One person's experience of being bullied online.
The stars of the BBC school drama have this advice on what to do.
Jacob's training videos are attracting tens of millions of views on social media.
Family says the large turnout of about 1,000 people had "restored our faith in humanity".
MP for Great Yarmouth Rupert Lowe strongly denies accusations of bullying and harassment upheld by a KC.
