The U.S. military has carried out an air strike in Syria targeting Mohammed Emwazi, the Islamic State militant known as "Jihadi John" who participated in gruesome videos showing the killings of Western hostages, a U.S. official said on Thursday.
US carries out Syria strike targeting 'Jihadi John'
A screen grab from a video posted to YouTube by ISIS that claims to show journalist James Foley, who was abducted in 2012 while covering the Syria civil war, being beheaded. (Photo via YouTube)
BREAKING - Jihadi John revealed - the first picture of Mohammed Emwazi as an adult http://t.co/rxdU5ycD2D
British Aid Worker David Haines (Photo via YouTube)
Screen shot from an Internet video released Friday that purports to show an ISIS militant beheading British aid worker Alan Henning, who had been taken hostage by the extremist group.
Islamic State of Iraq and the Levant fighter threatens to behead Japanese hostages Journalist Kenji Goto Jogo, left, and military contractor Haruna Yukawa in a propaganda video released by the organization January 20, 2015.
LONDON, ENGLAND - FEBRUARY 26: The home where the British Daesh (Islamic State of Iraq and the Levant) militant known as 'Jihadi John' is claimed to have once lived, is pictured on February 26, 2015 in London, England. Mohammed Emwazi has been pictured in videos showing the beheading of Western hostages. (Photo by Tolga Akmen/Anadolu Agency/Getty Images)
An arrangment of British daily newspapers photographed in London on February 27, 2015 shows the front-page headlines and stories regarding the identification of the masked Islamic State group militant dubbed 'Jihadi John'. The British headlines were dominated on Febryary 27 by the story of the identification of the Islamic State executioner. 'Jihadi John', the masked Islamic State group militant believed responsible for beheading of at least five Western hostages, has been named as Kuwaiti-born computing graduate Mohammed Emwazi from London. AFP PHOTO / DANIEL SORABJI (Photo credit should read DANIEL SORABJI/AFP/Getty Images)
EXCLUSIVE PICS: The Man Utd & S Club 7 fan who became I.S. executioner 'Jihadi John' unmasked http://t.co/BBES6nVowK http://t.co/5v9pjNHcqU
James Foley's mother says she 'forgives' Mohammed Emwazi http://t.co/dPHi1gvRK1 http://t.co/b1xtfU456u
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The United States was still assessing the effectiveness of the strike, which took place around the city of Raqqa, the official said, speaking on condition of anonymity.