Hundreds of terrorised children often on the verge of suicide are calling the police every day because they are viciously bullied on Facebook.
Britain's forces fear this could be 'the tip of the iceberg' as more youngsters are certainly suffering in silence.
Many are constantly being bombarded with abusive messages or have Facebook pages set up just to bully them.
Today one of the most senior police officers in the UK has spoken out on the issue.
Greater Manchester Police chief constable Peter Fahy says children are being terrorised by cyber-bullies, and in his region alone 10 children dial 999 every 24 hours about the issue.
These complaints do not include ones made about trolls bullying on Twitter, other social networking sites or by text, with experts claiming up to one in three schoolchildren will suffer cyber-bullying at some point.
'While it is difficult to capture the true figure, we have on average of ten reports a day across the whole force concerning Facebook,' Mr Fahy said
'I am sure our figures are just the tip of the iceberg because many do not report it or decide to switch off their account. Read More