President Donald Trump signed an executive order Friday formalizing his announcement earlier this week that he’ll freeze assistance to South Africa for a law aiming to address some of the wrongs of South Africa’s racist apartheid era — a law the White House says amounts to discrimination against the country’s white minority.

South African President Cyril Ramaphosa responded on Monday to US President Donald Trump’s threat to cut off aid over the alleged mistreatment of White farmers, denying Trump’s claim that authorities were “confiscating land.