The founder of the whistle-blowing website Wikileaks, Julian Assange, has been arrested by the Metropolitan Police.
The 39-year-old Australian denies allegations he sexually assaulted two women in Sweden.
Scotland Yard said Mr Assange was arrested on a European Arrest Warrant by appointment at a London police station at 0930 GMT.
He is due to appear at City of Westminster Magistrates' Court later.
Mr Assange is accused by the Swedish authorities of one count of unlawful coercion, two counts of sexual molestation and one count of rape, all alleged to have been committed in August 2010.