Food and drug regulators are cooperating with local public security departments in the investigation of a food safety scandal involving more than 800 tons of industrial gelatin that was sold to more than 1,000 businesses for use in food, the Liaoning Provincial Food and Drug Administration said on Friday.

Authorities in Yingkou, Liaoning province, where police seized more than 6,000 kilograms of food items made with the industrial gelatin, are intensifying inspections to ensure people's safety, according to the Yingkou Information Office.

Industrial gelatin is on a list of substances banned for use in food by the National Health and Family Planning Commission, China's top health authority.