A video apparently showing before-and-after footage of a wedding has strengthened Iraqi claims that it was bombed by the US, killing at least 40.
The film, obtained by Associated Press Television News, depicts home video-style footage of an Iraqi wedding, and images of some of the victims of the air strike are apparently contained in the video.
The US is investigating the attack, claiming its soldiers were responding to fire and there was no evidence a wedding was taking place.
The incident occurred early on Wednesday morning at the village of Makr al-Deeb, in the desert close to the border with Syria.
The video shows the bride in a white dress from afar as she arrives in a pickup truck, before being quickly ushered into a house.
Outside, men recline on silk pillows relaxing on the floor of a large tent, as others dance to tribal songs.
The dead reportedly include the cameraman Yasser Shawkat Abdullah.
"There was no evidence of a wedding: no decorations, no musical instruments found, no large quantities of food or leftover servings one would expect from a wedding celebration," said Brigadier General Mark Kimmit, the US' chief military spokesman in Iraq.
But video shot a day later by APTN at the scene shows fragments of instruments, pots and pans and brightly coloured bedding strewn around the bombed-out tent.
While APTN said it cannot confirm the veracity of the video, a reporter and photographer who interviewed many of the survivors said they could identify some in the footage.
In the latest Iraq developments, the coalition is bracing for further violence after a week of clashes in Baghdad and central Iraq.
A US marine and a soldier were killed in a roadside bomb attack near Fallujah, with others wounded.
"Reports indicate the device was placed in a parked vehicle and detonated as two US convoys passed on the highway," said a statement.
In central Iraq, US troops said they killed 32 militiamen loyal to radical cleric Moqtada Sadr on Sunday in Kufa, just a few kilometres (miles) from the holy city of Najaf where the Shiite leader is holed up to escape arrest in connection with the killing of a rival cleric.