The officials furhter added the incident took place in Ghorak district of southern Kandahar province on Saturday evening.
Ghorak district chief Haji Pacha Khan confirming the report said the incident took place after a civilian vehicle struck with a roadside bomb in Bagram area in this district.
He said at least 2 Afghan civilians were killed and two others were injured following the blast. No group including the Taliban militants has so far claimed responsibility behind the incidnet.
Local officials blame Taliban group for the incident as Taliban fighters frequently use improvised explosive device and roadside bombs to taget Afghan and coalition security forces which normally leads to civilians casualties.