British Royal Mail workers have walked out at the start of a second 48-hour strike.
Peace talks over the weekend failed to break a deadlocked row over pay, jobs and pensions, and the strike began at 3am today.
Talks between officials from the Communication Workers Union and the Royal Mail broke up late last with no prospect of a deal.
Some 130,000 workers staged a 48-hour strike that ended at noon on Saturday, causing a massive backlog of mail across the country.
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Postal workers will hold a rally in London today.