(CNN) -- A car bomb in northern Afghanistan killed at least five civilians and wounded several more Saturday, the NATO command said.
The incident occurred in Kunduz province and the strike was believed to be targeting Afghan national police officers, NATO's International Security Assistance Force said.
A bomb was apparently attached to a white motor bike, which blew up in front of a butcher shop next to a police vehicle.
The southern and eastern regions of Afghanistan have been the most violent regions of the war, but unrest has increased in the north recently.
In the southeastern province of Paktika on Saturday, two Afghan civilians were wounded by a roadside bomb.