Twitter abuse suspect bailed

Tony Wang, the general manager of Twitter in the UK, said the company had "engaged with the relevant parties" over complaints of online harassment against a feminist campaigner.

An option to report abuse from within Twitter apps and websites would be launched soon, he suggested:

A man arrested on suspicion of Twitter harassment was bailed this afternoon, police said earlier.

A man arrested on suspicion of Twitter harassment offences has been bailed until September, police said.

• Complaints of crimes involving Facebook and Twitter increased by 780% in four years, according to official police figures from 29 British forces
• The phenomenon of social networking crime was comparatively minor in 2008 when 556 reports were made. Last year this figure stood at 4,908

Twitter said it plans to include a button for reporting abuse within every tweet, amid a growing furore over online threats to rape and kill a feminist campaigner.

A high-profile feminist who has experienced abuse on Twitter told ITV that the social networking site needs to enforce its own terms of service and acknowledge there is a problem.

Helen Lewis, New Statesman deputy editor and member of campaigning group Women in Journalism said:

A man will be questioned today over a barrage of hostile tweets to a feminist campaigner, including threats to rape and kill her.

Caroline Criado Perez faced a deluge of threats on Twitter over the course of more than a day after she successfully campaigned for a woman's picture to be put on a new bank note.

Scotland Yard said a 21-year-old was arrested yesterday in Manchester on suspicion of harassment offences after officers in Camden, London, received a complaint of malicious communications on Thursday.

After a man was arrested in connection with abusive tweets sent to feminist campaigner Caroline Criado Perez, she tweeted:

A 21-year-old man has been arrested in Manchester on suspicion of harassment offences after feminist campaigner Caroline Criado Perez was targeted on Twitter.

Scotland Yard confirmed the arrest is in connection with an allegation of malicious communications received by officers in London on Thursday.

Ms Criado Perez, who successfully campaigned for a woman's picture to be put on a new bank note, has received a deluge of threats from various sources on the microblogging site.

Twitter has faced calls to take faster and stronger action against online abuse in the wake of the incident.

Shadow Home Secretary Yvette Cooper has written to Twitter UK criticising its response to "appalling and unacceptable" comments made about a feminist campaigner on the site.

Addressing the threats made against Caroline Criado Perez, she said: "The response by Twitter has clearly been inadequate and fails not only Caroline, but many more women and girls who have faced similar abuse on your social network."

Cooper added: "More than 20,000 people have already signed an online petition asking Twitter to allow users to report abuse directly with one click.

"I urge you to go further and ensure that Twitter carries out a full review of all its policies on abusive behaviour, threats and crimes".

Read more: Twitter abuse action urged

Supporters of bank note campaigner Caroline Criado-Perez have helped launch a hashtag campaign under #takebackTwitter, over claims the social media network is failing to deal with threats of sexual abuse made on its site.