From NPR News in Washington,I'm Lakshmi Singh. The U.S. military is evacuating American and other foreign hostages held by Islamist militants at a gas complex in Algeria. NPR's Tom Bowman reports some of the several dozen other hostages have been killed in an ongoing crisis, though there is no word on a final death toll. The released hostages were expected to be flown to Europe before the C130 Medevac flight that arrived one day after Algerian forces storm this spiraling gas site. Officials say an unknown number of militants in hostages were killed in the ensuing gun battle. London based BP runs the gas site. It will not comment about the fate of any individuals or their nationalities. U.S. officials say besides Americans, the workers include British, French, Norwegian and Japanese citizens. American and British officials say they were not told before hand on the assault by the Algerian troops, but urged the Algerians to make the safety of the hostages their top priority.