The U.S. Army has said it is looking into reports that two American soldiers were killed in a gun battle with a rebel group in northwestern Iraq.
The Army said in a statement that two soldiers were among four that died Sunday in the village of Hawija in the province of Anbar.
The four were killed by a firefight between Iraqi forces and the group, which has been battling the Kurdish-led government of Prime Minister Nouri al-Maliki.
The incident comes just days after a U.N. mission warned that more than 300,000 Iraqis were at risk of famine.
It also comes amid mounting U.F.O. operations by Iraqi forces in the region.
The Kurdish forces in Iraq are trying to capture the town of Hawiya from the Islamic State of Iraq and the Levant (ISIL, also known as ISIS), which controls much of northern and western Iraq.
U.K.-based Human Rights Watch said earlier this month that more civilians were being killed and displaced by the fighting in Iraq.