At least seven people have been killed in a blast in the Afghan capital Kabul when a truck bomb exploded outside a US security firm.
A truck loaded with construction wood and packed with explosives detonated outside the headquarters of a US security firm.
A doctor at the Kabul Emergency Hospital said the dead included three Nepalese and two Afghans.
It is reported that two American nationals were also among the victims.
Earlier, the US military said at least nine children and one adult were killed when a blast ripped through a school in south-eastern Afghanistan.
The explosion late last night was close to a school near the town of Zormat, 125 km south of Kabul.
Taliban fighters and their Islamist militant allies are active in the provinces along Afghanistan's south and southeast border with Pakistan.
Some 18,000 US-led troops along with the newly formed Afghan National Army are hunting the insurgents.
The Taliban militia is waging a campaign of violence to disrupt Afghanistan's first presidential election on 9 October.
