A roadside bomb killed a Canadian soldier in southern Afghanistan, while a suicide attack in the same region left three policemen and a civilian dead, officials said. Canadian Pvt. Terry John Street, 24, died Friday in the volatile Panjwaii district west of Kandahar city, long a hotbed of Taliban activity, said Brig.-Gen. Guy Laroche, the commander of Canadian forces in Afghanistan. In the suicide attack, a bomber blew himself up near a police vehicle on the outskirts of Lashkar Gah, the capital of Helmand province, said provincial police chief Mohammad Hussein Andiwal. In addition to the four deaths, seven civilians and another policeman were wounded.