Members of South African anti-immigrant groups clashed on Saturday with police, not far from the Nasrec Expo Centre in Johannesburg where world leaders were meeting for the G20 summit.

The groups ranged from members of Operation Dudula (meaning: “to get rid of by force”) and supporters of the opposition uMkhonto we'Sizwe (MK) party.

Operation Dudula members along with other protesters were allocated a site, which is around 1.5 kilometers (almost one mile) from the G20 summit venue.

Two people were arrested during the clash and Operation Dudula's leader told the media the police are misusing their power and are afraid to tackle the issue of illegal immigration.

"People are tired of foreigners. And the president is not addressing this issue. That's why we are here today, because we want him to talk about it. We want those presidents from other countries to advise him that 'close your borders so that there's law and order in your country'," said Zandile Dabula.

Africa’s most developed economy attracts migrants from neighboring Zimbabwe, Mozambique and Lesotho and as far away as Nigeria and Ethiopia.

In the year ending March 31, the Department of Home Affairs deported 46,898 migrants who had entered South Africa without documentation, an 18% increase from the previous year.

Operation Dudula emerged a few years ago, and its visibility has grown as mostly young Black South Africans take part.

It’s not clear how many members the group has.

Its actions have included closing down foreign-owned shops and blocking the children of foreigners from entering public schools.