More than 20,000 RMT members working on the railways will walk out at the end of the month in fresh strike action, the union has announced.
In a statement, the RMT said members of “every grade of 14 train operating companies will take further strike action in the national dispute over working conditions, pay and job security”.
Walkouts will take place on 26 August and 2 September.
RMT General Secretary Mick Lynch said: “The mood among our members remains solid and determined in our national dispute over pay job security and working conditions.
“We have had to call further strike action as we have received no improved or revised offer from the Rail Delivery Group.
“The reason for this is the government has not allowed them a fresh mandate on which discussions could be held.
“Our members and our union will continue fighting until we can reach a negotiated and just settlement.
