Workers on London’s Docklands Light Railway are to stage a 48-hour strike over a “comprehensive breakdown” of industrial relations.

Members of the Rail, Maritime and Transport (RMT) union working as cleaners, security staff and travel safe officers will walk out from 5.30am on Thursday February 1.

The workers, employed by contractor ISS, took strike action on New Year’s Eve, but the union said no progress had been made over pay and other issues.

RMT general secretary Mick Cash said: “We are supporting our members’ further strike action in a bid to force management to properly adhere to the agreed negotiating machineries and stop trying to impose fundamental changes to working conditions.

“RMT reps have continually chased management to resolve the dispute but the company are blatantly ignoring the union’s concerns.

“We are expecting further solid support in this dispute.”

Mark Davis, interim general manager of DLR, said: “We have been assured this will not have an impact on our customers or the DLR service.

“We urge all parties to sit down and talk through the issues to try and resolve them as soon as possible.”

An ISS spokesman said: “We are disappointed that RMT is planning strike action.

“We continue to meet with the RMT in an attempt to resolve the dispute and welcome positive and transparent discussions before the date of the action to resolve the perceived issues.

“Our priority now is to minimise the disruption to the travelling public and we will achieve this through using additional resources from other qualified transport teams.”