From Reuters:
The U.S. military said it killed around 40 people in an attack on suspected foreign fighters in Iraq near the Syrian border on Wednesday, but disputed reports the victims were members of a wedding party...
Dubai-based Al Arabiya television quoted witnesses as saying U.S. warplanes had bombarded the village of Makr al-Deeb near the Syrian border while families were attending a wedding party, killing 41 people.
Arabiya said casualties included women and children and showed pictures of several shrouded bodies lined up on a dirt road. Men were shown digging graves and lowering bodies, one of a child, into the pits while relatives wept.
"The U.S. planes dropped more than 100 bombs on us," an unidentified man, who said he was from the village, told the television station.
"They hit two homes where the wedding was being held and then they leveled the whole village. No bullets were fired by us, nothing was happening," he said.
Seeing as how the air strike took place at 2:45 in the morning I'm guessing that it wasn't a wedding party that was hit. Who has a wedding party at that hour?