Militants in Iraq issued a video tape today of three captive Jordanian truckers pleading for their government to warn its nationals against working with US-led forces.
"We will not have mercy on anyone. We will strike with an iron fist whoever deals with the occupation," one of three masked gunmen said on the video.
No specific threat was made against the truckers.
The tape shows the three sitting in front of the gunmen under a black banner that reads "Army of Islam-Counter-attack Brigades". It includes close-ups of the hostages' passports.
The truckers said they had been well treated. "God grant victory to the mujahideen," said one, identifying himself as Mohammed Zeitoun.
It was not immediately clear if the three were among four Jordanian drivers that a Foreign Ministry official in Amman said were kidnapped in western Iraq yesterday.
Militants in Iraq have seized scores of foreigners since April as part of a campaign to try and drive foreign troops and workers from the country. Many have been freed, but more than 35 have been killed, some of them beheaded.