At least eight Afghan civilians have been killed in a missile attack Sunday by foreign forces.

At least eight Afghan civilians have been killed in a missile attack Sunday by foreign forces in Kapisa Province in northeastern Afghanistan.

Local witnesses said the missiles hit a residential unit in Heybat region in Kapisa Province, killing eight civilians and injuring several others.

According to local sources, the rockets were fired from a military base used jointly by Afghan and US-led NATO forces in the area.

Afghan officials have confirmed the assault and the number of the casualties.

The Western military alliance says it has started an investigation into the incident.

Earlier late Saturday, three Afghan civilians were killed in a NATO attack on a village in the southern province of Helmand.

Thousands of Afghan civilians have been killed by US-led forces since the occupation of the country over a decade ago.

A United Nations report on Afghanistan issued on September 28 said that the monthly average number of security incidents recorded for the year through the end of August has climbed by nearly 40 percent.

The report also said that civilian casualties, already at record levels in the first six months of the year, rose five percent between June and August 2011, compared with the same three-month period in 2010.