The air strike by US forces in eastern Afghanistan last week killed 17 civilians including women and children, a provincial governor has said.
US planes had bombed Chechal village as part of a search for four missing US special forces servicemen.
Assadullah Wafa, governor of Konar province, said the bombing was a "mistake" and called for a US inquiry.
One of the missing US soldiers has been found safe and the search is continuing for the other three.
A US helicopter that was sent to look for the missing men was shot down by suspected Taleban militants, killing 16 US soldiers.
Mr Wafa told the BBC he thought the air strike on the village was not intentional, but said: "We would ask for an answer from the American military."
He said US planes were still flying in the area but there was no further bombing. He could not give more details on the civilian casualties.
A US military spokesman said of the bombing: "We don't have any information on that but we are still assessing the situation."
At the weekend US military sources said some civilians may have been killed in the raid.
'Lucky shot'
US soldiers rescued one of the missing servicemen on Saturday.
There has been no word on the fate of the remaining three members of his team, who have reportedly not made radio contact since their disappearance.
A US military spokesman said that a search operation to find the other unit members was going on despite bad weather, mountainous terrain and the continued threat of militant attacks.
The BBC's Andrew North, in eastern Afghanistan, says the rescued soldier reportedly pointed the US search team in the direction where other members of the team had gone, but their whereabouts and condition still remains unclear.
The downing of the helicopter was the biggest single US combat-related loss of life in Afghanistan since the overthrow of the Taleban government in late 2001.
Claims by a Taleban spokesman that they had captured the men have been denied by the US.
Names and details of the 16 troops who died on board the Chinook have already been released by the US military.
US officials said it had been a "lucky shot" by the suspected Taleban fighters that brought down the helicopter.
PHOTO CAPTION
A U.S. soldier in Tirin Kot capital of central Uruzgan province, Afghanistan July 2, 2005. (Reuters)