The suicide of a 14-year-old girl who was apparently targeted by online `` trolls '' has added fuel to calls in Britain for action to prevent abuse on social media , following outrage over rape and bomb threats made against women via Twitter . Teenager Hannah Smith was found dead Friday at her home in Leicestershire . She hanged herself after she was bullied on the website Ask.fm , her father told UK media , having gone there to look for advice on the skin condition eczema . And the nightmare is not over for her family . Her older sister , Jo , is quoted in the Daily Mirror newspaper Wednesday as saying that she is now herself the target of Internet trolls . `` I 've just lost my sister and now I 've got to deal with getting abuse myself , '' she told the newspaper . `` These trolls do n't care what happened to Hannah or what we 're going through , they just live in their sad little worlds . It 's really upsetting . I 'm struggling to cope with what 's happened and do n't need these trolls hounding me . '' Nasty comments were also posted on a Facebook memorial page set up in Hannah 's memory . More than 10,000 people have signed an online petition calling on the government to act after Hannah 's death . It states , `` Cyber-Bullying has been an ever increasing problem within the UK for a considerable amount of time with one of the biggest offenders becoming Ask.fm , a site popular amongst young people where posts can be made with confidence anonymously which has led to bullying , mental health problems and suicides as well as grooming . '' Ask.fm , a social networking and question-and-answer site , said the teenager 's death was 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 , '' it said in a statement . `` 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 . All reports are read by our team of moderators to ensure that genuine concerns are heard and acted upon immediately -- and we always remove content reported to us that violates our Terms of Service . '' Advice issued by the Child Exploitation and Online Protection Centre , run by police , warns that Ask.fm is not suitable for children and offers limited privacy . `` More often than not the anonymous nature of Ask.fm leads to exchanges of hate speech and cyberbullying . As such we would not recommend it as an appropriate online environment for children whether they are over 13 or not , '' it states . It adds that users can block people who post offensive comments and can also disable their own account if they choose . A spokeswoman for Leicestershire police said the teenager 's death was subject to a coroner 's inquest , so police could not yet investigate . An inquest is held in Britain when a death is sudden or unexplained . Arrests made over threats . Police are already investigating the online rape threats made against feminist Caroline Criado-Perez and Labour Party politician Stella Creasy , as well as bomb threats directed at several women journalists . London 's Metropolitan Police said Wednesday that a 32-year-old man had been arrested in Bristol , southwest England , as part of an ongoing investigation into allegations relating to the reported rape threats . Two men were also arrested last week in connection with the inquiry . Andy Trotter of the Association of Chief Police Officers said police will act when threats are made , but they ca n't respond to all offensive comments posted . `` Reports of credible threats and communications made over social media that specifically target an individual and constitute harassment will be taken very seriously by the police and investigated , '' he said . But , he added , `` There are many grossly offensive , indecent and obscene comments made every day on social media that will not meet the threshold and where the police should not be involved . ... We would like to see social networks do more to take actions such as instantly suspend accounts where it might be appropriate . '' Amid growing public anger over the threats made against women , Twitter announced Saturday that it had revised its rules on abusive behavior and was introducing an `` in-tweet '' button to report abuse .
Sister of a girl who committed suicide after she was bullied online says abuse continues . More than 10,000 people sign petition calling for action after Hannah Smith 's death . Website Ask.fm offers condolences , says it will cooperate with police inquiry . Threats against women via Twitter have also highlighted problem of online abuse .