Kano--Police personnel in Kano State have taking over mining sites in the state as part of efforts at checking criminality and illegal mining by foreigners.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/nigeria-zamfara-killings-police-seal-mining-locations-kano
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/all-africa
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/illegal-trade
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nigeria
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa