The call for the US Ambassador Reuben Brigety to "be expelled or recall" are "growing louder", reported South African media.
"There is a strong push for action to be taken against those who made the allegations including the US Diplomat," SABC reported.
The outlet has also noted that it "reliably learnt that those who made the allegations have not been able to present evidence before the commission that was investigating the matter."
The report comes as last Friday, SA’s President Cyril Ramaphosa received a report on an investigation into claims made by the US envoy regarding the aim of the Russian ship Lady R’s December docking at the Simon's Town naval base.
In May, Brigety claimed that the Russian ship had collected weapons from the Simon’s Town Naval Base in South Africa in December, 2022.
At the time, reacting to the statement, South Africa's Department of International Relations and Cooperation (DIRCO) summoned the US ambassador and later said the US diplomat "admitted that he crossed the line and apologized unreservedly to the government and the people of South Africa."
In June 2023, Defense Minister Thandi Modise has described allegations "as propaganda", noting that the country didn't breach any sanctions when the Lady R vessel docked near Cape Town.
"Propaganda is propaganda. Whether it is internal in any country or it is across the world. We stand by our statement. We did not load anything destined for any other," Thandi Modise was quoted as saying by local media.
The allegations that Russian vessel loaded arms in South Africa late last year had a negative impact on the economy and the image of the country, according to local media.