A car bomb exploded in the southeast Afghan city of Kandahar today, killing a local soldier and wounding at least three people, Qatar's Al Jazeera satellite television reported.
The incident occurred on the first anniversary of the swearing-in of the government of Afghan President Hamid Karzai, who took over after a US-led military coalition toppled the fundamentalist Taliban regime.
Kandahar was the Taliban's former stronghold.
Al Jazeera, which has a strong presence in Afghanistan, did not give any more details.
Afghanistan's neighbours are meeting in Kabul to sign a non-aggression pact to mark the anniversary of Karzai coming to power.
An American soldier died of gunshot wounds yesterday after suspected al Qaeda militants fired on a patrol unit in eastern Afghanistan.
A United Nations group said last week that Osama bin Laden's al Qaeda network had set up several new training camps near the border with Pakistan.
Seven German servicemen with the 22-nation International Security Assistance Force were killed yesterday in Kabul and two Afghan girls were missing after a helicopter crashed into a house.