ROYAL Mail bosses have tonight condemned a two-hour strike by staff at a sorting office in March, Cambridgeshire, as “unlawful”.

Around 30 staff at the Royal Mail sorting office in Dartford Road, March, stood outside the building to conduct their protest in the pouring rain this morning.

Senior officials are believed to have arrived from King’s Lynn and Peterborough to resolve the issues with striking staff and end the two-hour protest.

Staff stated that it was a local dispute only and involved the breakdown of trust with local management.

A Royal Mail spokesman said tonight, in a statement: “Royal Mail condemns this unlawful and unofficial action, which hurts our customers and our business.

“However, the majority of mail was delivered today and we are pulling out all the stops to have all Christmas mail delivered by Christmas.”

One of the workers said the group returned to work after their grievances were aired and a “resolution of some kind” was met.

Striking workers have promised to “work extremely hard” to catch-up with the two-hours work which they missed.