ISIS Leader Purportedly Says Coalition 'Terrified, Weak'

The speaker in an audio message posted Thursday on an ISIS social media account claims to be leader Abu Bakr al-Baghdadi.

He is heard saying the U.S.-led coalition to destroy ISIS is "terrified, weak and powerless." CNN cannot confirm the authenticity of the online message or when it was recorded.

The 17-minute audio says the coalition's effort has been a "failure" and the coalition will be "forced" to "send ground forces to their deaths and destruction."

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