Bus services were temporarily disrupted due to flooding at depots. Mayisela said many routes are inaccessible.
Some healthcare facilities could not operate due to damaged infrastructure and staff being unable to get to work due to road closures.
"The municipality will continue to assess the situation and advise the public of developments," added Mayisela.
During a briefing on Tuesday, mayor Mxolisi Kaunda said initial investigations showed that the storm damage was influenced by landslides as opposed to poor drainage systems.
“One of the fundamental factors that have influenced incidents in many areas where we received reports, is that they are as a result of the landslides. It has nothing to do with the drainage system but they are in areas where there is soil that is moving. So if those houses are built on steep hills then it may wash away.”
He said they were "surprised" by this storm because it was different from those of 2011, 2017 and 2019 and affected many areas within the municipality.
Kaunda said the city was being aided by the city of Cape Town which was sending a helicopter to aid with air support.
He said provincial co-operative governance and traditional affairs MEC Sipho Hlomuka would reveal the number of fatalities and those missing.