A videotape of three peace activists who were taken hostage in Iraq has been broadcast on Arabic television station Al-Jazeera.
74-year-old British hostage Norman Kember, who was seized in Baghdad with two Canadians and a US citizen in November, appears on the tape which was broadcast without audio.
The men, all members of peace group Christian Peacemaker, were last seen in a video clip broadcast in January.
A group calling itself the Swords of Truth has demanded that all Iraqi prisoners be freed.
