An explosion in a private fireworks factory killed five people, including the owners and their 12-year-old son, and injured nine, a newspaper reported Tuesday

The Guangming Daily said the Aug. 23 blast was triggered when the 12-year-old, who worked at the factory, mishandled fuses. He and the four other victims died in the hospital.In June, an explosion at another factory injured 15 workers, including 13 children.