A suicide attack in south Afghanistan has killed at least 21 people, many of them children, police say.
The bomb was detonated in a market in the Deh Rawud district of Uruzgan province at about 1030 local time.
Provincial police chief Jumma Gul told the BBC that a suicide bomber on a motorbike had struck a police vehicle.
Militants in Kunar province attacked a Nato outpost, leading to clashes and casualties on both sides, said a statement by the alliance.
It said insurgents had been using shops and the mosque in the village of Wanat for cover.
"There have been casualties on both sides of the fight, but accurate numbers could not be confirmed as the fighting is ongoing," the announcement by the International Security Assistance Force (Isaf) said.
And US forces said 40 insurgents had been killed in Helmand province in the past 24 hours.
There is no confirmation.
BY-BBC NEWS
