Aljazeera has aired a video of two Bulgarians taken captive by a group calling itself Liberation and Jihad Movement."
The group claimed it captured the two men in Iraq and asked the US -led forces in Iraq to release all Iraqi detainees within 24 hours or they would be killed.
The tape had come from the Tawhid and Jihad group, allegedly headed by Jordanian Abu Musab al-Zarqawi.
It showed the two men who were identified as Bulgarians sitting in front of their captors with their hands cuffed.
The two captors in the video were carrying rifles and a rocket propelled grenade launcher. On the wall behind them was their black flag with a golden circle.
One of the men read a statement, though his voice could not be heard.