Metrojet Flight 9268 was most likely taken down by an ISIS bomb, according to an official quoted by CNN today.

BREAKING: US official says ISIS bomb is ‘most likely’ reason behind Russian jet crash https://t.co/5eOsRGXWQL

— Daily Mail US (@DailyMail) November 4, 2015

“There is a definite feeling it was an explosive device planted in luggage or somewhere on the plane,” the official said.

He added that U.S. intelligence has yet to reach a formal conclusion on the crash.

Although the U.S. did not have credible or verified intelligence of a specific threat before the crash, the official said “there had been additional activity in Sinai that had caught our attention.”

The news on the intelligence analysis follows a statement by the office of British Prime Minister David Cameron saying a bomb may have caused the crash on Saturday that killed 224 people.

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