KABUL: Nato says seven attackers have stormed a base of the US-led coalition in Kandahar province of southern Afghanistan.    

The coalition says the attackers breached the outer security of the base on Tuesday in Shah Wali Kot district, but were then killed by guards at the compound.

Provincial spokesman Javid Faisal says initial reporting indicates that at least one foreign worker was killed and two other foreigners were wounded, but this could not be independently confirmed.

Earlier, Afghan officials said three Afghan policemen were killed when their checkpoint was attacked Tuesday in Kandahar city.

And US and Afghan officials say three individuals dressed in Afghan police uniforms turned their guns on coalition troops Monday in Zhari district of Kandahar province, killing one Nato service member and wounding several others.