Kurdish fighters pushed to retake Iraq’s largest dam on Sunday in an attempt to reverse gains by Islamic State insurgents who have overrun much of the country’s north, officials said.

Islamic State militants have seized several towns and oilfields as well as Mosul Dam in recent weeks, possibly giving them the ability to flood cities or cut off water and electricity supplies.

Asked about a Kurdish push to dislodge the militants on Sunday, a Kurdish official said they had not retaken the dam itself but had seized “most of the surrounding area”. […]