Afghan suicide blast 'kills four' civilians
At least four civilians have been killed in a suicide car bomb attack targeting a Nato convoy in southern Afghanistan, say Afghan officials.Nato has not yet commented on the incident near Kandahar city, but the Taliban have claimed responsibility.
The attack comes a day after a roadside bomb killed 11 civilians in neighbouring Helmand province.
US and Afghan forces are waging a major offensive against Taliban fighters entrenched there.
The attack happened near the airport, an important base for Nato forces battling militants across southern Afghanistan.
On Friday, the US military said it was planning a new offensive later this year to drive the Taliban from Kandahar.