The RMT said tomorrow's rail strike will go ahead, saying the Transport Secretary Grant Shapps wrecked negotiations.
Mick Lynch RMT general secretary said: "Grant Shapps has wrecked these negotiations by not allowing Network Rail to withdraw their letter threatening redundancy for 2,900 of our members.
"Until the government unshackle Network Rail and the train operating companies, it is not going to be possible for a negotiated settlement to be agreed.
"We will continue with our industrial campaign until we get a negotiated settlement that delivers job security and a pay rise for our members that deals with the escalating cost of living crisis."