WikiLeaks Julian Assange appears at Westminster Court in London

The 39-year-old Australian was detained by Scotland Yard officers at around 9.30am after he voluntarily went to a police station in central London.

Police contacted Mr Assange's lawyer last night after receiving a fresh European arrest warrant from the Swedish authorities, as anger grows in the US over the latest leaked embassy cables by the whistleblowing website.

Former Guantanamo prisoner in London Court.

Former Guantanamo prisoner in London Court.

Jamil El-Banna 45, arriving at City of Westminster Magistrates' Court for an extradition hearing ( Thursday 20-12-2007 ) . www.snapperjack.net contact info@snapperjack.net