The city may or may not be divided into "city municipalities". Six cities, Belgrade, Novi Sad, Niš, Požarevac, Užice and Vranje comprise several municipalities, divided into urban and suburban areas. Competences of cities and their municipalities are divided. Of those, only Novi Sad did not undergo the full transformation, as the newly formed municipality of Petrovaradin exists only formally; thus, the "City municipality of Novi Sad" is largely equated to "City of Novi Sad" (and the single largest municipality in the country, with around 300,000 residents).