US Conducts New Airstrikes on ISIS Targets in Syria

PHOTO: The guided-missile cruiser USS Philippine Sea launches a Tomahawk cruise missile at Islamic State group positions in Syria as seen from the aircraft carrier USS George H.W. Bush on the Arabian Gulf, Sept. 23, 2014.PlayEric Garst/U.S. Navy/AP Photo
WATCH Who and What the US Hit in Syria

New airstrikes targeting ISIS militants in Syria were conducted overnight, a U.S. official said.

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There were a total of two airstrikes in Syria overnight along the border with Iraq. Four other airstrikes were conducted in Iraq, the official said.

These fresh airstrikes followed the U.S.-led coalition hitting ISIS targets in Syria on Monday.

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Fighter aircraft from Jordan, the United Arab Emirates, Bahrain and Saudi Arabia participated in Monday night's airstrikes, Qatar played a supporting role in the airstrikes. The overwhelming majority of the munitions dropped over Syria in the airstrikes were from U.S. aircraft.

Monday's airstrikes also targeted the Khorasan Group, an offshoot of al Qaeda that has concerned U.S. security officials because of its plans to conduct attacks against the U.S.