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 both
change and pay. Change is the route to higher pay.”
