TWITTER plans to include a button for reporting abuse within every tweet.

The company announced the move as a man arrested in connection with a barrage of hostile tweets sent to a feminist cam-paigner was released on bail.

Caroline Criado-Perez faced a menacing tirade on the micro-blogging site, including threats to rape and kill her, after she succeeded in her crusade to have a woman's picture placed on a new banknote.

Police have questioned a man in connection with the torrent of abuse as Twitter faced repeated calls to ramp up its security policies. The 21-year-old has been bailed to a date in mid-September following his arrest in Manchester on suspicion of harassment offences, Scotland Yard said.

It follows a complaint made on Thursday in Camden, north London, who are continuing their inquiries, the force added.

An online petition in support of Ms Criado-Perez, which urged Twitter to facilitate the swift reporting of threatening behaviour, has already received more than 62,000 signatures. The vicious online attack has also led to calls for a boycott of the social media platform on August 4.

Walthamstow MP Stella Creasy criticised Twitter's security policies after she drew a similar barrage of threats for supporting Ms Criado-Perez. The politician retweeted some of the sinister messages to her 30,000 followers.

Ms Creasy said: "This is not about Twitter, this is about hatred of women and hatred of women who speak up. Twitter needs to be explicit that sexual violence and sexual aggression will not be tolerated as part of their user terms and conditions."