A girl holds a placard during the peace walk in Cape Town, South Africa, on May 25, 2019. Thousands of South Africans on Saturday took to the streets in Cape Town to mark Africa Day with a call for peace on the continent. (Xinhua/Willem van der Merwe)

A woman takes part in the peace walk in Cape Town, South Africa, on May 25, 2019. Thousands of South Africans on Saturday took to the streets in Cape Town to mark Africa Day with a call for peace on the continent. (Xinhua/Willem van der Merwe)

People take part in the peace walk in Cape Town, South Africa, on May 25, 2019. Thousands of South Africans on Saturday took to the streets in Cape Town to mark Africa Day with a call for peace on the continent. (Xinhua/Willem van der Merwe)