
Human rights groups condemned Mr Hajj's imprisonment.
"His detention for six years, without the most basic due process, is a grave injustice and represents a threat to all journalists working in conflict areas," said Joel Simon, executive director of the New York-based Committee to Protect Journalists.
Mr Hajj was working as a cameraman for al-Jazeera when he was arrested by Pakistani troops near the Afghan border in December 2001 and later handed over to the US military.