JOHANNESBURG (AP) — Campaigning for South Africa's upcoming election reaches a climax Sunday with mass rallies by the ruling party and one of its most potent challengers.

The African National Congress, the party of Nelson Mandela which has governed the country since the end of apartheid in 1994, is holding its final rally in Johannesburg's Ellis Park rugby stadium. ANC supporters, wearing bright yellow T-shirts gathered at the stadium, which has a capacity of 62,000, to hear South Africa's President Cyril Ramaphosa and other top officials.

Thousands wearing bright red T-shirts went to a competing rally in Soweto, Johannesburg's largest black township, at Orlando Stadium by the Economic Freedom Fighters, a populist, leftist party. Firebrand leader Julius Malema, who split from the ANC, is set to address the rally.