Investigations by Reuters suggested that workers at a Foxconn factory that assembles iPhones were subjected to a substandard and unhealthy environment. Protests pressured the facility to shut down after many workers contracted food poisoning. Consequently, Apple and Foxconn apologised for the poor living and working conditions and promised to make improvements.
https://www.notebookcheck.net/Workers-protest-at-Indian-iPhone-plant-due-to-widespread-food-poisoning-and-overcrowding.589470.0.html