Teenager kills one pupil and injures five other people in school shooting

A candlelight vigil was held following a shooting at Perry High School in Iowa (AP)

A teenager armed with a shotgun and a handgun killed one pupil and wounded five other people at an Iowa high school on the first day of classes in the new year, US authorities said.

People took shelter in classrooms, barricaded offices and fled the barrage of bullets fired by the suspect, a 17-year-old pupil at the school in Perry, who died of what investigators believe was a self-inflicted gunshot wound.