World leaders are gathering in South Africa for the G20 summit.
But a notable absentee in Johannesburg is Donald Trump. The US President says he's boycotting the summit over allegations of discrimination against white farmers in the host country.
South African President Cyril Ramaphosa has called the claims 'completely false'.
From Johannesburg, Olly Barratt reports.
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OUT: "…the United States."
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