Prime Minister Dmitry Medvedev said that Russia must stem the flow of foreign migrants to its sparsely-populated eastern regions and prevent the emergence of enclaves populated by foreigners, according to AP. Medvedev didn\'t name any specific country, but his Thursday\'s statement marked a rare official acknowledgement of a threat posed by the influx of Chinese migrants to the remote and economically-struggling region. Russian political experts and the media have long voiced fears about the growing number of Chinese migrants in border areas, saying their presence may eventually weaken federal control over the region. Medvedev told a Cabinet session that it\'s necessary to \"protect our fareastern territories from excessive expansion of citizens of neighboring countries.\"