WikiLeaks founder Julian Assange took his 13-month fight against extradition to Sweden to England's highest court yesterday.

Seven judges are hearing the 40-year-old Australian's appeal over two days at the Supreme Court and are not expected to return their judgement for several weeks.

Assange, who has been living on bail under virtual house arrest while awaiting the outcome of his case, denies the rape allegations made by two women in Sweden, and insists the sex was consensual.

If the court rejects his appeal, the former computer hacker will have exhausted all his options in Britain but he could still make a last-ditch appeal to the European Court of Human Rights, prosecutors have said.