Afghanistan: 7 killed as helicopter gunned down

Five Americans, a Briton and a Canadian died when a Chinook helicopter was apparently shot down in Afghanistan's most volatile province, officials said Thursday. The Taliban claimed responsibility. Initial reports suggested the helicopter was hit with a rocket-propelled grenade on Wednesday evening, said the US official, who insisted on speaking anonymously because the crash was still under investigation. NATO said there were no survivors. Taliban sources claimed that the number of NATO soldiers killed was 35.