Up to 17,500 white Afrikaners could be allowed into the United States as refugees over the next 12 months, a formal notice to Congress says. That planned intake shifts who gains protection and escalates an already charged argument over whether white South Africans are being targeted in a campaign of mass violence.

In Washington an Afrikaner lobby group displayed thousands of white crosses on the National Mall, presenting them as markers for victims of what organisers describe as a white genocide in South Africa. The public installation has become a visual focal point for activists pressing the US to recognise and respond to those claims.

South Africa's new ambassador in Washington, Roelf Meyer, has pushed back against the narrative. Meyer says the idea of a mass assault on the white Afrikaner minority does not exist, rejecting the core assertion behind the crosses and the lobby group's campaign.

The notice to Congress, dated Tuesday, is the clearest indication to date of how the Trump administration intends to respond to pressure from supporters of Afrikaner migrants. The BBC's North America correspondent Ione Wells reports on the part the US has played in elevating the allegation that white South Africans are victims of an organised campaign of violence.

The combination of a visible protest in the US capital and an official refugee notice is likely to keep the issue in the headlines and make it a diplomatic talking point between Washington and Pretoria. The differing accounts presented by lobbyers on one hand and South Africa's ambassador on the other underline a political dispute about facts, definitions and the appropriate international response.

What follows will depend on how many refugees the administration ultimately approves, how Congress and advocacy groups react, and whether the competing narratives over violence in South Africa prompt further policy or diplomatic moves.