All the children are pupils at a privately owned kindergarten in Tianshui, Gansu, which was established in 2022 with 251 enrolled students. Investigations revealed lead contamination in food served to the students, China's state broadcaster CCTV reported.

Eight individuals have been arrested in China following a food safety scandal in which over 200 kindergarten children in Gansu province were diagnosed with lead poisoning after consuming contaminated meals at their school.