Via Antiwar.com:

At least six Afghan civilians have been killed and 14 more wounded as US helicopters attacked them overnight in the Kandahar Province. The strikes came after a US patrol came under fire, though it remains unclear if any militants were actually killed in the strike.

Airstrikes ordered in response to U.S. troops under fire cause most civilian deaths that can be attributed to U.S. and other pro-Afghan-government forces.