More than 200 kindergarten students in northwestern China were found to have abnormal blood lead levels after kitchen staff used paint as food coloring, authorities said, in a case that’s stoked outrage in a country long plagued by food safety scandals.

In Tianshui City, China, over 230 children were hospitalized due to lead poisoning after kindergarten staff used industrial paint on food. The principal instructed the purchase of the toxic paint online,