The mother of two Irish teenagers who took their own lives has said the death of English girl Hannah Smith has forced her to relive the deaths of her two girls.

A website at the centre of a “cyberbullying” tragedy has described the death of a teenage girl as a “true tragedy” and vowed to work with police investigating the incident.

A social media website linked to cyberbullying and teen suicides has hired spin doctors to repair its reputation following a series of public relations disasters.

More than 70% of families who lost someone to suicide believe “more could have been done” in the period leading up to the death.

Aoife Fitzpatrick (not her real name) is 15 and flattered, if a little frustrated, that she doesn’t know who’s paying her the compliment that has just appeared on her ask.fm account.

The mother of suicide victims Erin and Shannon Gallagher has said but for internet sites such as Ask.fm, her daughters would still be alive.