The U.S. is looking into whether a toxic chemical was deployed on areas of Syria that are controlled by rebel forces seeking to oust Syrian President Bashar Assad.
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State Department Jen Psaki said Monday the chemical was likely chlorine, if it was used.
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She said officials are still trying to determine what happened in the village of Kafr Zita, but that the U.S. takes allegations about chemicals used in combat very seriously.
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On Sunday, French President Francois Hollande told Europe 1 radio station that he has "several elements" suggesting recent use of chemical weapons in Syria, but no definitive proof.
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Psaki said the U.S. is working with the United Nations and the Organization for the Prohibition of Chemical Weapons to get more details. (AP)
