South Africa's President Cyril Ramaphosa has spoken against vigilantism that has become the order of the day in the country.

Addressing the nation last night, Ramaphosa warned against infiltrators who want South Africans to turn against those who were not born in the country.

President Netumbo Nandi-Ndaitwah is expected to deliver the highly anticipated State of the Nation Address (SONA) on Wednesday.

The address is expected to outline the government's key priorities, review progress made, and provide a clear roadmap for the year ahead.