Kenji Minemura reports in THE ASAHI SHIMBUN:
Chinese authorities have widened their investigation into the manufacturer of poisonous gyoza dumplings that sickened 14 people in Japan and China.
Having already interviewed 55 of the regular employees of Tianyang Food, investigators have begun questioning temporary workers at the food manufacturer, sources said.
Public security officials suspect that methamidophos, an organophosphorous pesticide, was intentionally mixed into gyoza at the company’s factory in Hubei province, the sources said.
Chinese investigators previously ruled out this scenario, but changed their stance after four Chinese who ate the company’s gyoza fell ill in June.
