Four policemen were killed when a roadside bomb struck their vehicle in southern Afghanistan, dpa quited police as saying Saturday. The incident took place Friday night in the Spin Boldak district near the border with Pakistan, said Zia Durrani, police spokesman for Kandahar province. He said one police officer was injured, and nobody claimed responsibility for the attack. -- SPA 14:51 LOCAL TIME 11:51 GMT تغريد