This week saw the RMT take their second 48 hour period of strike action against London underground's devastating plan to close all ticket offices and shut nearly a thousand jobs. Many tube lines were suspended by the RMT action, with big delays across all other lines.

RMT is mid way through a planned five days of all-out strike action across London Underground after long-running talks hosted by ACAS, aimed at settling the dispute over cuts to jobs, ticket offices and safety, were wrecked by a combination of management intransigence and the introduction of additional measures that actually worsened the original toxic package. It has also been made crystal clear to the union that this is just a first tranche of cuts with even harder attacks being lined up for the near future.

The RMT is today (2nd May, 2014) back at ACAS following the recent industrial action.

We note the correspondence from the Lead Officer and senior reps from TfL No 1 branch informing us that TSSA and Unite have called strike action on this matter on Friday 9th May.

While this union, in the interest of solidarity and unity agrees to call our members out on strike on the same date, we are appalled that these unions did not coincide their action with those of our members on London Underground.

With strike action solid this morning, tube union RMT reminded Mayor Boris Johnson of his repeated promises not to close tube ticket offices – broken promises that run right to the heart of the dispute.

Asked last year about his plans to close a number of ticket offices across London, Boris Johnson's spokesperson said:

"This Mayor takes his promis es to Londoners extremely seriously. Every station that has a ticket office will continue to have one.”