An audio recording purportedly from the Islamic State of Iraq and Syria promises more fighting in more Iraqi cities, including Baghdad.
"Continue your march as the battle is not yet raging," a voice said to be that of ISIS spokesman Abu Mohammed al-Adnani says on the message posted early Thursday (last Wednesday night ET) on the group's media website.
"It will rage in Baghdad and Karbala. So be ready for it."
CNN cannot confirm the authenticity of the audio or time and date of its recording, which is nearly 17 minutes long.
"Don't give up a hand's width of ground you've liberated," the voice says in apparent encouragement of ISIS fighters.
The message, if authentic, is further proof that the militant group are not content with control of the places they have already taken over - and are setting their sights higher.
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