Kabul, November 22: Local sources said on Tuesday that three children and two women were among the dead.
Afghan authorities told reporters that they would investigate the incident.
Meanwhile, the US military admitted to having launched an airstrike, but said that all those killed were militants.
Earlier on Tuesday, four civilians were killed and three others were wounded after their vehicle hit a roadside bomb in Alingar district of Laghman Province in eastern Afghanistan.
Afghan civilians have paid a high price since the US-led invasion of the country in 2001.
According to figures released by the United Nations, the number of civilians killed in the first half of this year saw a 15 percent increase.
—-Agencies