Swedish authorities say they have issued an arrest warrant for Wikileaks founder Julian Assange, on accusations of rape and molestation.
The warrant was issued late on Friday, said Karin Rosander, communications head at Sweden's prosecutors' office.
Swedish police have been trying to contact Mr Assange, but have not yet been able to, she told the BBC.
Wikileaks, criticised for leaking Afghan war documents, quoted him saying the charges were "without basis".
The message, which appeared on Twitter and was attributed directly to Mr Assange, said the appearance of the allegations "at this moment is deeply disturbing".
In a series of other messages posted on the Wikileaks Twitter feed, the whistle-blowing website said: "No-one here has been contacted by Swedish police" and said it had been warned to expect "dirty tricks".
Last month, Wikileaks published more than 90,000 secr
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