Intended targets included the Provincial Legislature and City Council offices.

CAPE TOWN - More than 180 people were on Monday arrested after police confiscated crates of sealed bags containing raw sewage in Cape Town.

Western Cape Premier Helen Zille's office welcomed the arrests.

Her spokesperson Zak Mbhele said, "Our office is pleased to hear that the South African Police Service acted in a coordinated and swift manner to prevent what happened last week from taking place again and we're just hoping they will carry out their investigation in full."

Groups of Khayelitsha residents were rounded up at a local train station.

It's believed they planned to dump the human waste at the City Council and Provincial Legislature.

Last week protesters flung raw sewage at a convoy transporting Zille through Khayelitsha.

Demonstrators also emptied the contents of portable toilets on the doorsteps of the legislature last week.

The police's Fredrick van Wyk said, "We've arrested a total of 184 suspects between the ages of 18 and 40 and they will appear in the Cape Town's Magistrate's Court soon."

However some protestors managed to dump human waste outside the offices of Democratic Alliance leader Ivan Meyer.

Meyer said the demonstrations were uncalled for.

"Clearly this is an indication of how low the ANC and the ANCYL is going to fight the election and I'm not worried about it."

Meanwhile, controversial former councillor and ANC Youth League member Andile Lili confirmed he is one of a group of people who were arrested while on their way to dump faeces at the City Council.

Lili told Eyewitness News they would continue to dump faeces on Zille's doorstep until a proper sanitation service is provided to the poor.

"We are emptying our toilets there because our toilets have smelled for three months."

The uproar is in protest at the recent rollout of the City of Cape Town's new portable flush toilet project in Khayelitsha.

Lili added that this is not the end.

"This is a violation of a human's right to dignity. We have a right to dignity and we have a right to privacy. All those rights were violated by Helen Zille."