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Hundreds of taxi operators carried placards insulting President Jacob Zuma at a march against e-tolls in Pretoria on Monday.
The drivers gathered in Marabastad before handing a memorandum of grievances to the office of Transport Minister Dipuo Peters.
The National Taxi Alliance was protesting against government's failure to issue drivers with operating licences which would exempt them from paying e-tolls.
The NTA members wore white T-shirts and were followed by more than 50 minibus taxis as they marched.