At least four civilians including three children have been killed and three others injured by an improvised explosive device(IED) in southern Afghanistan, the country’s Interior Ministry says.“An Improvised Explosive Device (IED) placed by Taliban struck a civilian vehicle in Shahid Asas district, Uruzgan province at about 7 p.m. local time Tuesday. As a result three children and a man were martyred and three women were wounded,” the ministry said in a statement on Wednesday. The statement added that those injured were rushed to a nearby hospital for medical treatment. Roadside bombs and improvised explosive devices are by far the most lethal weapons Taliban militants use against Afghan forces, foreign troops, and civilians. On April 15, seven members of an Afghan family were killed in a similar attack in Mali Zai region of Zabul Province in southern Afghanistan. Violence continues to plague Afghanistan despite the presence of thousands of foreign forces, more than a decade after the US-led invasion of the country in 2001. In the first six months of 2012, over 1,140 Afghan civilians were killed and around 2,000 were wounded, mostly by roadside bombs, according to statistics released by the United Nations. Thirty percent of the casualties were women and children.