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.
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As the silence came to an end the crowd began to applaud and people shouted "I am not afraid!" in defiance of the attacks.