Interpol has placed the Australian-born founder of WikiLeaks on its most-wanted list after Sweden issued an arrest warrant against him as part of a drawn-out rape investigation.
The Lyon, France-based international police organisation has issued a "red notice" for 39-year old Julian Assange - the equivalent of putting him on its most wanted list.
The move by Interpol was expected after a Swedish court in mid-November approved a motion to have Mr Assange brought in for questioning.
The notice, posted on Interpol's site on Tuesday, is likely to make international travel more difficult for him.
Mr Assange, whose whereabouts are unknown, is suspected of rape, sexual molestation and unlawful coercion.
He has denied the allegations, which stem from his encounters with two women during a visit to Sweden in August.