Royal Mail workers are to stage a further 48-hour strike starting at the end of this month in a dispute over pay and conditions.
The Communication Workers Union (CWU) said on Twitter: “We have today called a further two days (of strike action) on 30 September and 1 October over attacks on terms and conditions.”
Some 115,000 postal workers are already due to strike on Thursday and Friday following a similar walkout last month.
Royal Mail, which has said its business is losing £1m a day, said the strike action had weakened its financial position.
The CWU had turned down a request to call off this week’s strikes, it added.
“The CWU’s approach is setting us on a perilous path,” Royal Mail said in a statement.
“We remain ready to talk with the CWU to try and avert damaging industrial action… But any talks must be about bothchange and pay. Change is the route to higher pay.”
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