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Residents throw stones and bricks in an attempt to extinguish a fire burning a storage room in Pretoria's Atteridgeville township on June 21, 2016 in an incident that happened during the ongoing violences over a disputed mayoral candidate for the upcoming municipal elections. The unrest erupted on June 20 after the ruling African National Congress (ANC) released the names of mayoral nominees for hotly-contested local government elections on August 3. / AFP / MUJAHID SAFODIEN (Photo credit should read MUJAHID SAFODIEN/AFP/Getty Images)

Residents throw stones and bricks in an attempt to extinguish a fire burning a storage room in Pretoria's Atteridgeville township on June 21, 2016 in an incident that happened during the ongoing violences over a disputed mayoral candidate for the upcoming municipal elections.
The unrest erupted on June 20 after the ruling African National Congress (ANC) released the names of mayoral nominees for hotly-contested local government elections on August 3. / AFP / MUJAHID SAFODIEN        (Photo credit should read MUJAHID SAFODIEN/AFP/Getty Images)