According to Ukrainian law a city (місто) in Ukraine is a locality of at least 10,000 people. Cities may carry various status. Some may be of national importance, others of regional (oblast) importance, and the rest of district (raion) importance. For example, the cities of "Kyiv" and of "Sevastopol" have special status of national significance and each is officially classified as a "city with a special status", which administratively is equivalent to an oblast. Mayors of those cities, in general, as are governors of oblasts, are appointed by the President of Ukraine. However, the status of the mayor of Kyiv is somewhat more complex, and for further information see Legal status and local government of Kyiv. The status of Sevastopol is also unique.