An Afghan civilian working for the NATO-led force was killed by alliance troops on Tuesday after approaching their convoy in his vehicle at high speed, a NATO statement said.
The troops initially fired a warning shot at the vehicle in Urgun district in eastern Paktika province, before shooting the man to death, the statement said.
The victim worked at a military base in Urgun, it said. An investigation into the shooting was launched, the alliance said.
NATO said last week that it killed too many Afghan civilians during fighting last year, but that the Western alliance was working to change that in 2007.
Afghanistan last year went through its most violent period since the ouster of the Taliban militia from power in 2001. Some 4,000 people were killed in 2006.
President Hamid Karzai has pleaded with foreign forces to use maximum caution following the deaths of dozens of civilians during operations by foreign troops.
These deaths undermine his authority among the people.