French President Francois Hollande has confirmed the killing of a French hostage in Algeria.
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A video released by a U.S. terrorism watchdog showed Algerian extremists allied with the Islamic State group decapitating a hostage after France ignored their demand to stop airstrikes in Iraq.
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The group, which calls itself Jund al-Khilafah, said after abducting Herve Gourdel on Sunday that he would be killed within 24 hours unless France ended its airstrikes against Islamic State fighters in Iraq.
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The French government has insisted it will not back down.
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Hollande told reporters Wednesday that the hostage was cruelly "assassinated" because he was French and because his country was fighting terrorism and defending human liberty against barbarity.
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He spoke on the sidelines of the U.N. General Assembly which he is attending. (AP)
