merged into Mykolaiv Raion. In February and March 2022, during the 2022 Russian invasion of Ukraine, Russian military forces attacked Mykolaiv and placed it under siege. Ukrainian forces barred Russian forces from the city, though Russian artillery continued to shell it. Demographics As of 2017, 63% of the population spoke Russian at home, 7% Ukrainian, and 28% spoke both Ukrainian and Russian equally. Awards The Soviet Government awarded Mykolaiv the Order of the Red Banner of Labour on 31 December 1970, for successfully fulfilling its assignments for the development of industrial production, in the USSR's five-year economic plan. On 25 March 2022 Ukrainian President Volodymyr Zelenskyy awarded Mykolaiv the title of Hero City of Ukraine due to the Battle of Mykolaiv. Administrative districts Mykolaiv is divided into four districts: Tsentralnyi District is located in the northwest of the city. It includes the historic center of Mykolaiv, Rocket tract, Temvod, Salt, Northern, Ternovka (in Ternovca also acts village council), Matveevka, Varvarovka. Zavodskyi District is located in the west of the city. In this area, many industrial enterprises are concentrated. It also includes neighborhoods Lescaut and Alluviation, as well as towns of Velyka Koreniha and Mala Koreniha. Inhulskyi District (former Leninskyi District) is located in the east of Mykolaiv. Among other things, it includes the new Horticulture, YUTZ, New Watering, Old Watering. The district has a zoo, bus and railway stations. Korabelnyi District is located in the south of the city. It includes a broad beam, Bogoyavlenske (former Zhovtneve), Balabanovka, Kulbakino. Official symbols Mykolaiv adopted its current coat of arms on 26 September 1997. Its design came from the one adopted in 1883, by removing the symbol of Kherson province to which Mykolaiv didn't belong anymore. Mykolaiv adopted its current flag on 2 July 1999 and its anthem on 11 September 2004. Economy Mykolaiv is a major shipbuilding center of Ukraine since the time of the now defunct Soviet Union (1922–1991) and an important river port. The city has three major shipyards one of which is capable of building large navy ships. Other important industries are mechanical engineering, power engineering, metallurgy and food industry. Mykolaiv was closed to foreign visitors until the late 1980s due to the large number of secret Soviet Navy projects that took place in the city (as well as due to its military air base, turbine factory and military port). The majority of the Soviet Navy's surface ships,