The dumping of human waste by protesters in the Western Cape is a sign of the ANC's inability to co-exist with other parties, the Azanian People's Organisation (Azapo) said.
"The continuous throwing of human excrement does not only expose humans to bacterial infections such as E Coli, but reduce those throwing the poo in the streets to the same level as poo," it said in a statement.
"This becomes worse when parents and relatives of the poo throwers are the ones to clean the mess."
The African National Congress Youth League in the Western Cape distanced itself on Tuesday from the latest dumping of human waste by four men on the steps of the provincial legislature on Monday.
ANCYL provincial convenor Muhammad Khalid Sayed denied reports that the four were members.
"No, we have not identified them. And no, we do not recognise them," he said.
Lt-Col Andre Traut said the men fled after dumping the waste on the legislature's steps on Monday morning.
"The circumstances surrounding the matter are being investigated and no-one has been arrested as yet," said Traut.
Cape Town has been hit by a number of human waste dumping incidents in the past few months by people protesting about sanitation in informal settlements.
Many believed the portable flush toilets (PFTs) being rolled out by the city were no better than the bucket system.
The legislature dumping occurred at the same time that nine men appeared in the Bellville Magistrate's Court for allegedly dumping human waste at Cape Town International Airport.
They are Loyiso Nkohla, Andile Lili, Yanga Njingwana, Ben Dyani, Jaji Diniso, Bongile Zanazo, Thembela Mabanjwa, Bantubakhe Mqobodiya, and Wandisile Mkapa.
Nkohla is an ANC councillor and Lili is a former councillor and provincial ANCYL leader.
They allegedly dumped 10 buckets of faeces at the airport's departures terminal on June 25. They are charged under the Civil Aviation Act and face up to 30 years in prison if found guilty.
Lili was previously arrested with more than 100 others at a Cape Town train station in June for allegedly plotting to dump human waste in the city.
On June 4, a group of people in Khayelitsha threw human waste at a bus and cars used for transport to a green economy event hosted by Western Cape premier Helen Zille.
A day before that, two men dumped faeces on the steps of the Western Cape legislature in a protest about the PFTs.
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