Skopje climbed to the 5th spot among the world most polluted cities overnight, according to the world air quality index.

New Delhi and Lahore led the list, ahead of several Balkan capitals – Sarajevo, Belgrade and Skopje in fifth place. The Macedonian capital routinelly tops the list during the winter, as citizens use mostly wood but often plastics and other waste to heat their homes due to the lack of a reliable gas supply and the pricey electricity costs.