A general view shows the Mosul dam on the Tigris River around 50 kilometres north of the northern Iraqi city of Mosul
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Iraq crisis: Kurd forces 'advance' on Mosul dam

Kurdish sources say their forces "are advancing" in an offensive to retake Mosul dam from the Islamic State (IS) jihadist group.

A joint operation involving both Kurdish forces and US air strikes has been under way since 05:00 local time (03:00 GMT), the sources said.

The strategic dam, which supplies water and electricity to northern Iraq, was seized by the militants on 7 August.

The BBC's Jim Muir in Irbil, in Iraqi Kurdistan, said there was hope that the militants would be induced to leave the dam by the threat of extreme force.

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