The newspapers involved were: The Manchester Evening News, The Gazette in Teesside, The Journal and The Chronicle in Newcastle, The Huddersfield Examiner and The Hull Daily Mail
The Manchester Evening News, said on its website: "Today the North calls on government to finally put its money where its mouth is.
"With ministers poised to release their long-delayed plan for railway investment this week, we warn it is time to replace rhetoric with reality where the North of England is concerned.
"Enough's enough. The prime minister has been prepared to use chronic central government neglect of northern England to his political advantage. It is time to keep his side of the bargain.
"Where rail investment is concerned, that does not mean a smattering of piecemeal upgrades dressed up as a transport revolution, ready for deployment on leaflets at the next election.
"It means new inter-city lines to and across the North, a move supported both by northern leaders and the Conservative manifesto."
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