Four members of a family were killed as a roadside bomb struck a civilian car in the eastern Ghazni province on Sunday, police said.

"Four members of a family, including two children and their mother and father, were killed as their car ran over a mine in Gilan district of Ghazni province on Sunday," deputy to provincial police chief Assadullah Insafi told reporters.

The official blamed enemies of peace, a reference to the Taliban militants, for the deadly attack.

However, the armed outfit which is largely relying on suicide and roadside bombings has yet to make comment.