President Cyril Ramaphosa has announced that the government will increase penalties, including imprisonment, for employers who violate the Immigration Act by employing undocumented foreign nationals.

The government will impose harsher penalties, including jail terms, for employers who hire undocumented migrants, President Cyril Ramaphosa said on Sunday night, as part of a wider strategy to tackle illegal immigration and tighten enforcement across South Africa.

He was addressing the nation amid growing tensions over illegal immigration and calls for undocumented migrants to leave the country.

His address on the government's response to rising tensions comes amid calls for a nationwide shutdown on June 30 and demands that undocumented migrants leave South Africa.

There has been a surge in protests targeting foreign nationals in recent months.