Civilians die in Afghan bus blast

At least nine civilians have been killed by a bomb attack on a minibus in Afghanistan, police say.

At least two children were among those killed by the bomb that was thought to have been planted to attack Nato troops.

A further six people were wounded in Tuesday's explosion in Uruzgan province.

Juma Gul Hemat, a provincial police chief, blamed the bus bombing on "enemies of Afghanistan", a phrase used to refer to the opposition Taliban.

"[The bomb] struck a civilian bus and killed innocent people," he said.

Among the civilians killed was Dost Mohammad Arghestani, head of the social affairs department in Kandahar province, who was on his way to work.

He was attacked by two armed men on a motorbike, according to Matiullah Qateh, the police chief.

Qateh said Arghestani's bodyguard was killed in the attack, and his driver was wounded.

Kandahar is one of the main strongholds for Taliban fighters, but drug smugglers, criminals and some tribal rivalries have also contributed to violence there.

Isaf death toll

Three soldiers with Nato's International Security Assistance Force (Isaf) were also  killed on Tuesday in Afghanistan when their vehicle struck a bomb, Isaf said.