Thousands of public sector workers have joined one of South Africa's biggest strikes, with trains not running and few commuters seen in Johannesburg.People in red T-shirts are gathering for 40 marches countrywide, as public sector trade unions warned of a total economic shutdown over pay demands.
President Thabo Mbeki has called for an end to intimidation by some strikers.
Negotiations between the unions and the government are in deadlock, complicated by the sacking of 600 health workers.
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