Cities in the US are now among the most unequal in the world, rivalling developing-country cities such as Nairobi and Santiago in their disparities between rich and poor, the United Nations said on Wednesday.

In its State of the World's Cities report, the UN identified Atlanta, New Orleans, Washington DC, Miami and New York as the most unequal cities in the US, comparing them with Nairobi, Buenos Aires, Santiago, and Abidjan.