Sweden's Supreme Court has rejected an appeal by WikiLeaks founder Julian Assange to revoke a detention order over allegations of sexual assault.
Assange, 43, has been stuck inside Ecuador's London embassy since June 2012 to avoid being extradited to Sweden, which wants to question him on allegations of sexual assault, which he denies.
Assange petitioned the Supreme Court after a lower Swedish court rejected his appeal in November.
Sweden issued an arrest warrant for Assange in 2010 following allegations from two women there, one who claimed rape and another who alleged sexual assault.
Assange, who faces arrest if he tries to leave the embassy, has always denied the allegations and insisted the sexual encounters were consensual.
Assange has refused to travel to Sweden because he fears he would be sent to the United States, where an investigation is ongoing into WikiLeaks' release in 2010 of 500,000 classified military files on the wars in Afghanistan and Iraq, and 250,000 diplomatic cables, which embarrassed Washington.