Gunman kills five after row at workplace

A 25-YEAR-OLD press operator shot and killed five co-workers and himself at a plastics plant in Kentucky just hours after arguing with his supervisor about not wearing safety goggles and using his mobile phone while on the assembly line.

Authorities said Wesley Higdon was so riled by the argument with his supervisor that he called his girlfriend and told her that he wanted to kill his boss.

The girlfriend didn't warn anyone, police said, and two hours later he argued with another co-worker at a petrol station, then returned and shot and killed his supervisor as they walked outside. He went back inside and shot at co-workers in a break room and on the plant floor.

A man who called authorities frantically told them: "There's like one, two, three, four, five people dead The supervisor is dead, too."