The State Security Agency (SSA) is auditing the level of security at vaccination sites.
State Security Minister Ayanda Dlodlo conducted some visits to sites, which included Khayelitsha and Groote Schuur Hospital in Cape Town.
Dlodlo is a member of the Inter-Ministerial Committee (IMC) on Covid-19. The visits were part of ensuring the vaccination rollout goes smoothly.
"We receive reports on a weekly basis, which are given to both the president and deputy-president, including the health minister and various ministers on the IMC, so that people can have an idea what the security situation looks like at the sites," Dlodlo said in a statement on Monday.
She said she was happy with what she had seen so far with regard to preparations for administering the Pfizer vaccine.
"We are on track," she said, following the delivery of some 325 260 doses on Sunday night.
She implored people to observe the rules and protocols to prevent the spread of Covid-19.