The leader of the Islamic State (ISIS) terror group in Afghanistan and Pakistan was killed by a U.S. drone last month, a U.S. defense official confirmed to Fox News Friday.

Pentagon spokesman Gordon Trowbridge said that Hafiz Saeed Khan died July 26 from an airstrike in Nangarhar province in eastern Afghanistan.

“Khan was known to directly participate in attacks against U.S. and coalition forces, and the actions of his network terrorized Afghans, especially in Nangarhar,” Trowbridge said.

The spokesman added that ISIS had been active in the region since last summer and used the area to┬átrain and equip militants and provide a “continuous supply of enemy fighters.”

The State Department last year designated Khan a global terrorist, saying he is the leader of the Islamic State in Khorasan, which includes former members of the Pakistani and Afghan Taliban. Khan had previously been a Tehrik-e Taliban commander, but last year pledged loyalty to ISIS leader Abu Bakr al-Baghdadi.

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