Tallulah Wilson death: Action urged over self-harm sites
19 February 2014 Last updated at 16:37 GMT
The government has been told it must take action to prevent more teenagers killing themselves after viewing online self-harm sites.
The call is made in the coroner's report into the death of Tallulah Wilson, a 15-year-old from West Hampstead who died at St Pancras Station in October 2012.
She died after posting self-harm images on networking site Tumblr.
It says more vulnerable young people could die unless there's a better understanding of the changing way they use the internet and create online personas.
Tim Squirrell, who has previously self-harmed and Dr Elena Touroni, a consultant psychologist, talk about the impact these types of images on social networking sites can have.