Petra Diamonds says some S.African workers on strike

JOHANNESBURG, Oct 2 (Reuters) - Petra Diamonds said on Tuesday that a "limited number" of workers at its Kimberley Underground mine had gone on strike, although production had not been affected.

A spokeswoman for the London-listed company said in an e-mailed statement that the strike had started on Tuesday and the company was in talks with the National Union of Mineworkers.

(Reporting by David Dolan)

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