The Economic Freedom Fighters stopped singing and sat down during the 'Die Stem' part of the national anthem at the 2016 State of the Nation Address.
Freedom Front Plus (FF Plus) leader Dr. Pieter Mulder on Friday said that he took offence to this behaviour.
Mulder explained that the action was compromising the efforts in building harmony in a multi-cultural society.
Listen to the full conversation from The Midday Report with Stephen Grootes:
It was frustrating. I even spoke to them, because they sat next to me.— Pieter Mulder, FF Plus leader
We are losing that (harmony). They are pushing for that, and in a sense, polarising society.— Pieter Mulder, FF Plus leader