(FILES) --- This 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. Al-Qaeda in Yemen claimed responsibility on January 14, 2015 for the attack against the French satirical magazine Charlie Hebdo, saying it was carried out on the orders of the group's Egyptian supreme leader, Ayman al-Zawahiri. 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 ==HO/AFP/Getty Images
America's most wanted terrorists
02:03 - Source: CNN
CNN  — 

In an audio message posted online Thursday, a man purported to be al Qaeda leader Ayman al-Zawahiri pledges allegiance to new Taliban leader Mullah Akhtar Mohammad Mansour.

“As a leader of al Qaeda jihadi group, we announce our allegiance to you,” the voice says in the message.

CNN couldn’t independently verify the message’s authenticity.

The Taliban, the Sunni Islamist group that took over much of Afghanistan in the 1990s, named Mansour its leader last month after confirming its previous leader, Mullah Mohammed Omar, was dead.

A U.S.-led 2001 invasion booted the Taliban from power after it offered safe haven to al Qaeda leader Osama bin Laden, but a Taliban insurgency continues in Afghanistan to this day.

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