Correctional Services said that “matters are under control” at Johannesburg’s Sun City Prison on Wed.
A 30-year-old FNB employee has been arrested for the alleged theft of cash from a client's account.
The incident brings to six the number of crimes of this nature occurring at the bank's Balfour, Mpumalanga, branch in less than a week.
Tumelo Lerato Moeketsi handed himself over to the police on Monday morning.
He appeared at the local magistrates' court later that day.
Last month Sowetan reported that two other FNB employees at the Acornhoek branch had stolen R100 000 from clients' accounts.
Police spokesman Sergeant Sam Tshabalala said theft from clients' accounts appeared to be rife at Balfour's FNB branch.
He said five other such cases were reported to the local police in a day last week.
He also said the complainants had not used their bank cards to withdraw any cash recently, "but were surprised to find that money was withdrawn from their accounts".
Moeketsi was not asked to plead and his case was postponed to next month for further investigation and he was released on R1500 bail.
Tshabalala sai d Moeketsi allegedly stole about R61230 from Pali Johannes Motaung's investment account.
Mo eketsi is alleged to have issued himself with a new bank card in the name of the complainant (Motaung) and "in September this year, he transferred R24000 from another client's account into Motaung's investment account".
He later withdrew the cash.
Moeketsi allegedly continued to access Motaung's account until his arrest.
Police investigations showed that a total amount of R61230 was withdrawn from Motaung's account.
Tshabalala said Moeketsi constantly withdrew sums of R3000 from Motaung's account until Motaung became suspicious when his ba nk statement reflected that he only had a balance of R1000. Moeketsi has also been suspended from duty pending the outcome of his case.
Clients who have experienced similar problems should contact Tshabalala or the investigating officer Inspector Johannes Steyn on 017-773-0050 or 079-804-6652.