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 rape, one of unlawful coercion and two counts of sexual molestation, alleged to have been committed in August 2010.
Police contacted his lawyer, Mark Stephens, on Monday night after receiving an European arrest warrant from the Swedish authorities.
BBC News 7 Dec 2010 :: read full report.
Swiss bank freezes his legal defense fund.
British authorities had earlier received an international arrest warrant for Assange from Sweden.
Meanwhile, a Swiss bank account held by Assange for donations to the whistleblower website and his legal defence has been frozen.