Police units deployed across South Africa before anti-immigration marches

Government fears repeat of anti-migrant violence in 2008 that led to looting and resulted in deaths of 62 people

South African authorities have deployed police units to towns and cities around the country before planned demonstrations against undocumented foreign nationals.

Security personnel were seen patrolling the central business district in Johannesburg, the economic capital, where many shopkeepers decided not to open on Tuesday. Trucks and other assets belonging to the South African National Defence Force were also present, according to local media reports.