US official: ISIS leader believed dead in US military assault

The leader of the Islamic State militant network is believed dead after being targeted by a U.S. military raid in Syria.

A U.S. official told The Associated Press late Saturday that Abu Bakr al-Baghdadi was targeted in Syria's Idlib province. The official said confirmation that the IS chief was killed in an explosion is pending.

President Donald Trump teased a major announcement, tweeting Saturday night that "Something very big has just happened!"

A White House spokesman, Hogan Gidley, would say only that the president would be making a "major statement" at 9 a.m. EDT Sunday.

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