Workers on the Heathrow Express are to strike again in a dispute over disciplinary action against two rail workers.
Members of the RMT union will walk out for nine hours from 3am on Saturday 24 March and for 12 hours from 11am the following day.
The union has held two strikes in protest at the sacking of a driver and disciplinary action against another worker.
A spokeswoman for Heathrow Express said: "The suspended employee has already returned to work and the dismissal ... has been withdrawn from employment tribunal."
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