STRIKE action is expected to disrupt Metrorail services today, the company said.
"One of the trade unions within the Prasa [Passenger Rail Agency of SA] will be embarking on a strike over the salary negotiations process," said Metrorail spokesperson Sibusiso Ngomane yesterday.
"Metrorail's operations of rail commuters will be affected."
On Friday, the Federation of Unions of South Africa (Fedusa) requested an urgent meeting with Transport Minister Sbu Ndebele.
In a letter sent to the minister, the union said it was "dismayed" by the unethical and irresponsible action taken by Metrorail management.
Last week, a strike by the South African Transport and Allied Workers Union was called off after an agreement was reached.
Fedusa said this placed the company's Utatu members - the majority of its train drivers, operational and maintenance staff - in an "untenable position".
Fedusa general secretary Dennis George said Metrorail had reneged on its previous offer of 7percent from April 1, with housing and medical subsidy adjustments which amounted to another one percent, and a further 1,5percent from September 1, which would then total 9,5percent. "Their offer of 8percent is ludicrous," he said. - Sapa