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.
More top news
Angela Merkel has taken a step towards forming a cross-party coalition and ending months of political deadlock.
Thousands of women's rights campaigners have held a rally outside Downing Street.
Hundreds of people are visiting St Joseph's Church in Limerick to pay tribute at the church wake for Dolores O'Riordan.