Deputy national police commissioner Lt-Gen Tebello Mosikili said teams were on high alert following various incidents including threats and lawlessness that have been unfolding in different parts of the country.
A suspect has been arrested in connection with the murders of two members of the MK Party a day before South Africans started casting special votes for the general elections.
Five suspected bank robbers killed in a shootout with police iol.co.za - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from iol.co.za Daily Mail and Mail on Sunday newspapers.