Up to 12 civilians - 10 children and two women - are reported to have been killed in a NATO air strike in eastern Afghanistan.
Another six women are believed to have been wounded in the incident in the eastern province of Kunar.
Villagers and officials told the BBC the casualties were inside their homes when they died.
NATO confirmed that "fire support" was used in the area but says it did not have any reports of civilian deaths.
A local official said eight Taliban also died in the air strike on Saturday.
Tribal elder Haji Malika Jan told the BBC: "The fighting started yesterday morning (Saturday) and continued for at least seven hours. There were heavy exchanges between both sides.''
The ISAF coalition said it is investigating.