Two further days of strike action by station staff on London Underground have been announced.

The Rail, Maritime and Transport (RMT) Union has said that action will take place on Wednesday 4 and Friday 6 October to highlight concerns over safety as well as job losses.

The long-running dispute, which began last year, is focused on the loss of 600 station staff which, the union claims, would lead to significant safety concerns.

The union is also protesting at what they say are detrimental working conditions, claiming that less staff will have higher workloads, more lone working and increased fatigue.

The job losses, they say, will have an effect on every aspect of Tube working.

This includes stations and maintenance, which could lead to more unstaffed stations and lower safety standards.

Minimum staffing levels were enshrined in statute by the Fire Precautions (Sub-surface Railway Stations) Regulations 1989 (S.I. 1989/1401), following the Kings Cross fire disaster of 1987. These were further reinforced by London Underground regulations, which set safe staffing levels for stations based on their size and traffic.

RMT general secretary Mick Lynch said: “Station staff have had enough of having their livelihoods threatened by job losses and attacks on their terms and conditions. Station staff have a vital role to play assisting vulnerable passengers access the network safely and ensuring that the tube is a safe environment for passengers.

“These job cuts and attacks on conditions are going to lead to more unstaffed stations, temporary closures and rising passenger anger. TfL has had its budgets slashed but the savings made by these station staff cuts will be negligible and will lead to shortages that are unacceptable.

“This strike action will lead to the tube being shutdown and we call on Mayor Sadiq Khan to meet us urgently to discuss this matter.”