Afghan officials say a roadside bomb killed six civilians and wounded nine others Sunday in southern Kandahar province.
There has been no claim of responsibility for the bombing.
Roadside bombs are a favorite weapon of Taliban insurgents in their campaign against foreign forces and the Afghan government, but civilians often fall prey to the explosions.
U.S. and NATO commanders have warned of an increase in violence as international and Afghan forces work to clear the south of Taliban insurgents.
In other developments Sunday, the Dutch are scheduled to withdraw the last of their 1,600-member force from Afghanistan.
And in the Afghan capital, Kabul, hundreds of demonstrators protested the killing of 52 civilians in a NATO rocket strike. NATO disputes the report of civilian deaths in the Helmand province attack.
Some information for this report was provided by AP and AFP.