"We were notified late last night that the Department for Transport has apparently discovered significant technical flaws in the way its franchise process for the InterCity West Coast was conducted and has consequently cancelled the competition for this franchise.
"Until this point we had absolutely no indication that there were any issues with the franchise letting process and had received assurances from the DfT that its processes were robust and that it expected to sign the contract with FirstGroup soon. We are extremely disappointed to learn this news."
Scotland's Transport Minister will outline his concerns at Holyrood
Russell Brown MP, has described the admission of flaws in the West Coast Mainline bidding process as "an utter shambles".
The competition to operate the West Coast Main Line has been cancelled after flaws were discovered in the bidding process.