An estimated 100 000 people marched to the Union Buildings in Pretoria calling for President Jacob Zuma to step down.
United in their call, opposition parties and civil society organisations participated in the march which had initially gathered at Church Square before heading to the Union Buildings.
We put together some images from the protest which stood out.
Pictures by Michelle Bao
Other images from today's march:
South African police showing #Tendencies #NationalDayOfAction pic.twitter.com/oZZtJarBhS
— Aislinn Laing (@Simmoa) April 12, 2017
#NationalDayofAction outfit of the day pic.twitter.com/idlQ2n22m3
— Nadeem (@rok_weiler) April 12, 2017
We're all in this together! ???????? #NationalDayofAction pic.twitter.com/o06oZG0REw
— Mathew Love (@mathewlove36) April 12, 2017
#NationalDayofAction pic.twitter.com/HYGIqjJCfm
— Nomsa Maseko (@nomsa_maseko) April 12, 2017
"I'm protesting not just against #Zuma and his cronies, but also for structrual inequality," says Kyle, 25. #NationalDayofAction @News24 pic.twitter.com/h3jrA01fDf
— Paul Herman (@PaulHerman88) April 12, 2017
#NationalDayofAction A t-shirt with President Jacob Zuma's face being dragged @News24 pic.twitter.com/T2mujD93xo
— Lerato Sejake (@leosejake) April 12, 2017
Some placards of #NationalDayofAction #OppositionMarch pic.twitter.com/hkP9inFKxR
— Abigail Javier (@AbigailJavier_) April 12, 2017
A #EFF supporter with a placard saying: "SAB/ABI you are worse than apartheid." At #ChurchSquare. #NationalDayofAction @News24 pic.twitter.com/ljwVOkaIwy
— Iavan Pijoos (@Iavan13) April 12, 2017
Some placards of #NationalDayofAction #OppositionMarch pic.twitter.com/hkP9inFKxR
— Abigail Javier (@AbigailJavier_) April 12, 2017