Four thousand Post Office workers will strike today in a dispute against plans to freeze wages and close 20% of the network.
It is the fourth time workers will stage a protest since Easter, today's strike involves staff working at more than 370 Crown offices, affecting 800 jobs.
The Communication Workers Union says staff have not had a pay rise since April 2011.
It believes the Post Office's 'transformation' plans are based overwhelmingly on cost-cutting.
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