The Daesh militant group has released an audiotape it says was recorded by its leader, Abu Bakr al-Baghdadi, days after reports that he had been killed or injured, the BBC reported Thursday.
In the recording, released via social media, the speaker says Daesh fighters will never stop fighting "even if only one soldier remains".
The Daesh leader was said to have been caught in a US-led air strike near the Iraqi city of Mosul last week.
Thursday's 17-minute recording makes no direct reference to that air strike, but does mention some developments that have occurred since then.
Among those are mentions of US President Barack's Obama decision to deploy an extra 1,500 troops to Iraq - a move announced shortly after the air strike on Mosul.