The estimated cost of building the controversial High Speed 2 rail network, which will travel through parts of Buckinghamshire and Northamptonshire has doubled to at least £80 billion, The Sunday Telegraph has reported.
A 58-page independent report by the Institute of Economic Affairs, due out tomorrow, will say that the spiralling cost of construction means HS2 now "defies economic logic" and should be cancelled.
The institute's report also apparently claims the £80 billion cost of HS2 could create "£320 billion of economic value" if it were invested in road, rail or other transport projects instead.
More top news
A guide to Donald Trump's presidential inauguration and the key events that will be happening.
At 55, the outgoing president has time to explore a new career path. Here are his plans and the unusual steps taken by other ex-presidents.
A member of the public first contacted emergency services fearing two people were in distress and needed help.