A car blast rocked Kunduz province in northern Afghanistan, killing an army officer on Saturday, provincial governor Mohammad Omar said, Xinhua reported.
"Some ones planted an explosive device on the car of the Speed Reaction Force official who was killed in the blast," Omar told Xinhua.
He did not give more details.
Kunduz, relatively peaceful province until early this year, has been the scene of increasing militancy over the past several months.
The militancy-plagued Afghanistan has been experiencing suicide bombings and roadside attacks over the past couple of years and a bloody one on Thursday left 17 dead and 83 injured with majority of them civilians.