Lancashire rail users are facing more disruption later this month.
Rail union the RMT has set a new strike date on Merseyrail and Northern services - May 30.
The union says it is because the company is refusing to budge on the issue of driver-only operated trains.
Richard Allan, Northern’s deputy managing director, said: “It is frustrating for us and our customers that RMT has announced further strike action for Tuesday 30 May.
“We urge RMT to get back round the table with us for open-minded, meaningful talks on the role they can play in delivering the modern railway that people of the North want and deserve.
“We want to protect jobs and current pay and, as we have said before, are willing to offer future, annual pay reviews for existing conductors if we can agree a deal.
“RMT’s dispute will not be solved by unnecessary strike action – but instead by working with us to deliver the modern trains, services and stations our customers want.”