Fuad Hussein, the chief of staff of the president of the Kurdistan region, has confirmed Islamist militants have seized control of Iraq's biggest dam in their latest offensive in the north of the country.
Control of Mosul dam could give the Sunni Islamists the ability to flood cities and cut off vital water and electricity supplies.
The Iraqi capital Baghdad lies downstream of the dam on the Tigris river.
Kurdish Peshmerga fighters have emerged victorious in the battle for Mosul Dam, but the question is - what will their next move be?
An ITV News team at Mosul Dam was with victorious Kurdish Peshmerga fighters at the complex earlier today.
ITV News joined a Kurdish unit fighting Islamist militants near Irbil and found them using tanks from the 1950s and short on ammunition.