Royal Mail workers are set to take strike action this Friday (August 26).
Postal workers are embroiled in a dispute with the company over both pay and working conditions.
Members of the Communication Workers Union (CWU) have also voted overwhelmingly to take further action, with 98.7 per cent voting in favour on a turnout of 72.2 per cent. This gives the union a mandate for more industrial action in addition to the walkouts already planned.