Sevastopol (English pronunciation, IPA: /ˌsɛvəˈstoʊpəl/ or /səˈvæstəpoʊl/) (Ukrainian an Russian: Севастополь; Crimean Tatar: Aqyar, Greek: Sevastopolis), formerly known as Sebastopol, is a port city in Ukraine, located on the Black Sea coast of the Crimea peninsula. It has a population of 342,451 (2001). The city, formerly the home of the Soviet Black Sea Fleet, is now a Ukrainian naval base mutually used by the Ukrainian Navy and Russian Navy.