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Prince William's task force is encouraging young people to take a stand against cyber bullying; with the launch of a new website and a national action plan.
Facebook and Snapchat are set to bring in ways to directly help young people bullied online, following an intervention by Prince William.
The move is part of a code of conduct drawn up by a taskforce of technology companies, children's charities and parents headed by the prince.
It aims to encourage young people to stop negative behaviour, tell a responsible adult and support victims.
Other firms, including Google and EE, have also taken part in the project.
The Duke of Cambridge became interested in helping to tackle the issue shortly after his son Prince George was born, when he heard about a boy who killed himself because of online abuse.
'Ate away at him'
In a moving video filmed to highlight the project, Lucy Alexander told the prince about her son Felix, who killed himself after being targeted on social media; and Chloe Hine, who, aged 13, tried to take her own life after enduring sustained online abuse.
"It is one thing when it happens in the playground and it's visible there and parents and teachers and other children can see it.
"Online, you're the only one who sees it, and it's so personal. It goes straight to your room." he said.
He also warned against cyber-bullies being able to ignore the real-world consequences of their actions.
"I think it is worth reminding everyone that the human tragedy of what we are talking about here isn't just about companies and online stuff - it's actually real lives that get affected," he added.
Stop. Speak. Support.
The task force have set up a new website: stopspeaksupport.com for young people to access for further support and information.
A national action plan to combat cyber bullying is expected to be launched later today (16th November 2017).
More information and advice about cyber bullying can be found here.