
Postal workers from the Communication Workers Union (CWU) on the picket line at the Royal Mail Whitechapel Delivery Office in east London
(Picture: PA)Royal Mail workers have begun a four-day strike over a pay dispute with the company.
On Friday, some 115,000 are expected to stage a walkout, which will last throughout the weekened, with Royal Mail warning that letters will not be delievred, and parcels will be delayed.