Four Afghan police were killed and another was injured as roadside bomb struck their van in western Herat province Wednesday, according to a statement of Interior Ministry released here on Thursday, Xinhua reported.
The incident, according to the statement happened in Darzak village of Kashek Kohna district leaving,"four police constable dead and injured their officer."
It put the attack on the enemies of peace, a term used against Taliban militants but the outfit fighting security forces has not to make comment yet.