Website apologies over death of trolled teen I would appeal to David Cameron as a Prime Minister and a father to look at this to make sure these sites are properly regulated so bullying of vulnerable people like my daughter cannot take place. Peter Wanless, chief executive of the NSPCC, said: "This is a tragic case where Hannah felt like she had no other option but to end her life. The cruel nature of cyber-bullying allows perpetrators to remain anonymous and hide behind their screens. This is something that must be tackled before it gets out of hand. We must ensure young people have the confidence to speak out against this abuse, so that they don't feel isolated and without anywhere to turn. Responding to the mounting criticism, a spokesman for the ask.fm said: "Hannah Smith's death is a true tragedy; we would like to convey our deepest condolences to her family and friends. We have reached out to the Leicestershire police and would be happy to cooperate with their investigation in to the true circumstances of her suicide. Ask.fm actively encourages our users and their parents to report any incidences of bullying, either by using the in-site reporting button, or via our contact page.  The tragedy comes amid a growing row about so-called trolling after a number of high profile women received vile messages and even anonymous death threats on Twitter. A spokesman for the Government said they were working with the industry to tackle the growing problem. The spokesman said: "This is a truly tragic incident and our thoughts are with Hannah's family. No child should have to suffer the fear and victimisation of bullying. Through the UK Council of Child Internet Safety we are working with providers to make the internet a safer place. For example Childnet and Beatbullying now offer young people expert advice on cyberbullying, and Facebook and Childline have recently launched a new anti-bullying initiative. In addition under the new curriculum children will be taught how to stay safe online from the age of five. Ask.fm is the latest social networking site to be criticised for failing to prevent online bullying taking place. Set up three years ago in the Latvian capital, Riga, by two brothers and three internet entrepreneurs, the business is now estimated to be worth around £50 million. With more than 60 million users, the majority of whom are thought to be under 18, the website, is based on a question and answer format. Taking just seconds to register, users do not have to give their real name and can even lie to pretend they are over the minimum age of 13. The company, which has been linked to a number of suicide cases, including two in the Ireland, admits that it has only 50 members of staff moderating messages posted by more than 60 million users worldwide. Samaritans is available round-the-clock on 08457 90 90 90