Correctional Services said that “matters are under control” at Johannesburg’s Sun City Prison on Wed.
The South African Municipal Workers Union plans to bring Johannesburg to its knees to drive their point home.
The union is not backing down from its demands and strike, and is seeking to get all other components of the city's workforce to join the strike in the next few days.
This means that waste collectors, emergency staff, metro police, clerks, cashiers and plumbers could be out on strike soon to back up the bus drivers.
"We are examining the Labour Relations Act regarding a secondary strike. We want to get all the city's departments on board because it seems that is the only way through which management would listen," said Samwu spokesperson Dumisani Langa in his address to about 800 workers picketing outside Metrobus offices in Braamfontein yesterday.
The union and management held another lengthy meeting yesterday morning.
Samwu chairperson in Gauteng Enock Sibiya said there had been no offer from management.
"Management called us to a meeting but did not put an offer on the table. They said they would send us a revised offer later to present to our members.
"In the meantime, the strike continues," said Sibiya.
He said talks at the South African Local Government Bargaining Council had been abandoned.
Metrobus spokesperson Kenneth Kutu said he was positive about the offer to be presented.
"Management is meeting to come up with an offer to present to the union."