Reported Tape of Terrorists Emerges Algerian TV has broadcast what it says is audiotape of terrorists at the In Amenas gas plant threatening to blow up the facility and "slaughter" U.S. hostages unless 100 imprisoned "comrades" are released, and also claiming that the hostages have been forced to wear bombs. The recordings that aired on Algeria's Ennahar TV were made before the four-day hostage crisis at the BP joint venture facility in the Sahara ended with nearly all terrorists and at least 23 hostages dead. "The Americans that are here, we will kill them," says Abdel Rahman el-Nigeri, a leader of the al Qaeda-linked terrorists who held the plant, in Arabic. We will slaughter them. A second person, identified by Ennahar TV as a hostage, says, in heavily accented English, "We have prisoners. We have hostages with bombs â¦ on the body. In Arabic, El-Nigeri demands that 100 "comrades" who were arrested 15 years ago be released. "Our demands are so easy, so easy if you want to negotiate with us," says el Nigeri. Either we get our brothers out or we die. He says that some hostages are still living after the Algerian military's initial assault, but warns "we shall bomb them if the Algerian Army gets near to us. Now they are heading towards us, God willing. Hostage Crisis The four-day hostage crisis at an Algerian natural gas plant has left at least one American dead, and the fate of two more is of growing concern, but seven Americans were among the dozens of Westerners who escaped unharmed. The siege of the In Amenas facility ended Saturday, when the Algerian military's final assault retook the BP joint venture plant in the Sahara from the al Qaeda-linked terrorists who had raided it Wednesday morning. The Algerian army nearly killed all the terrorists, but not before they apparently executed the remaining hostages. Over the course of the siege, 23 hostages died, and Algerian officials fear the toll may go higher. "For our people in Algeria, for their family and friends, this has been and continues to be a distressing and horrific time," said BP chief executive Bob Dudley. PHOTOS: Worst Hostage Crises The dead American was identified by the U.S. State Department as 58-year-old Fred Buttaccio of suburban Houston. The fate of two other Americans remains uncertain. Survivors said the attackers focused only on Americans and Westerners, including a large British contingent. Said British prime minister David Cameron, "Tragically, we now know that three British nationals have been killed and a further three are believed to be dead; and also a further British resident is also believed to be dead. Interactive Map: Hostage Situations Around the World Most of the 100 or more Western workers who were at the facility when it was raided Wednesday were ultimately freed or escaped. The Algerian military said it killed at least 32 of the terrorists, and displayed their bodies on Algerian TV. Officials said the terrorists were heavily armed with automatic weapons and explosive-packed suicide belts and were preparing to blow up the natural gas facility.