Militants in northern Iraq have massacred at least 80 men from theYazidi faith in a village and abducted women and children, reports say.
Senior Kurdish official Hoshyar Zebari said the men were killed in two groups after a column of Islamic State (IS) vehicles arrived in Kawju on Friday.
A US drone strike later destroyed two vehicles from the convoy, he said.
Reports say warplanes have struck IS positions near the Mosul dam, captured last week.
However, it is not clear whether US or Iraqi aircraft were involved.
Residents near the dam told AP news agency that the air strikes were carried out on Saturday afternoon, killing some militants.
Kurdish regional Rudaw TV earlier said several surrounding towns were also struck.
An official from US Central Command declined to go into detail.
"For the safety and security of our personnel, we will not discuss or speculate on reports of ongoing or future operations," the official told the BBC.
The dam controls the water and power supply to a large area of northern Iraq.