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(FILES) --- A still image from video obtained on October 26, 2012 courtesy of the Site Intelligence Group shows Al-Qaeda leader Ayman al-Zawahiri speaking in a video, from an undisclosed location. Zawahiri called for an end to clashes between Al-Qaeda-linked jihadists and Islamists fighting to oust Syria's regime, in an audio message posted on the Internet on January 23, 2014. AFP PHOTO / Site Intelligence Group == RESTRICTED TO EDITORIAL USE / MANDATORY CREDIT: "AFP PHOTO / Site Intelligence Group" / NO SALES / NO MARKETING / NO ADVERTISING CAMPAIGNS / DISTRIBUTED AS A SERVICE TO CLIENTS ==-/AFP/Getty Images