BEIRUT (AP) — The U.S.-led coalition says it targeted a senior member of the Islamic State group who was involved in the 2014 killing of American aid worker Peter Kassig.

Col. Sean Ryan, a spokesman for the U.S.-led coalition fighting IS, told The Associated Press on Monday that coalition forces conducted precision strikes against Abu al-Umarayn and several other IS members.

He says Sunday's strike occurred in a desert area in southeastern Syria.

Ryan says Abu al-Umarayn had given indications of "posing an imminent threat" to coalition forces and that he was involved in Kassig's beheading.

He also says al-Umarayn was linked to and directly involved in the killings of several other prisoners of IS.

Over the past years, the U.S.-led coalition has killed top IS officials in Syria and Iraq.

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