There are fewer than 500 hirola living in the wild, down from thousands just 40 years ago.
Prime Minister Boubou Cissé has promised to form an inclusive government as protests continue.
The church, on the outskirts of Johannesburg, was attacked amid reports of fighting over leadership.
World Cup organising chief Danny Jordaan says the 2010 tournament "took world football's knee off Africa's neck".
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