The killing of four migrant farm workers in Amendolara, southern Italy, has exposed the harsh realities of labor exploitation in agriculture. The men were burned alive in June, allegedly after protesting working conditions.

Activists, unions and prosecutors describe a system driven by illegal recruiters known as caporali, who control jobs, housing and wages for vulnerable migrant workers. Investigators suspect organized crime involvement.

Campaigners say many migrants are lured to Italy with false promises, before ending up in abusive, slave-like conditions.