Thousands of bus drivers are set to go on a national strike from Wednesday after they failed to reach a wage agreement with their employers.
Trade unions Numsa, Satawu and Towu served employers with a 48-hour strike notice on Monday.
Since January, they have been negotiating a deal with two associations representing 16 bus companies across the country, but the parties remain deadlocked.
The unions are demanding a 12% across-the-board increase as part of a one-year deal, but the bus companies are adamant they can only afford around 7.5% over a three-year period.
Algoa Bus Company in Nelson Mandela Bay announced on Tuesday that it's service would be suspended from just after midnight on Wednesday when the nation-wide strike was due to commence.
The GO GEORGE Bus service in George also informed its customers that it would be suspending its service from midnight Tuesday until further notice.