A North Cornwall MP says he is "extremely disappointed" after the county missed out on Government transport funding.
Ben Maguire (Liberal Democrats) has written to chancellor Rachel Reeves demanding why the Duchy was "overlooked" and asking her to reconsider her decision.
It follows an announcement by Ms Reeves on Wednesday (June 4) outlining plans to spend £15bn in England, including £800m in parts of the South West, with Bristol, Bath and North East Somerset, and South Gloucestershire set to benefit.
The letter was also signed by councillor Leigh Frost, leader of Cornwall Council, and councillor Dan Rogerson, cabinet member for transport at the local authority.
Mr Maguire wrote: "We are extremely disappointed that your announcement of over £15bn of funding for transport infrastructure across the º£½ÇÊÓƵ leaves Cornwall, a region in dire need of transport upgrades and increased investment, entirely overlooked in your transport investment plans."
He said that despite Cornwall having a population of 600,000, people living in the Duchy are "spread out" and better transport networks in the county were needed.
He went on to say that if the Government was "serious" about its levelling-up plans then Cornwall needed "serious transport investment".
"We urge you to reconsider your transport investment plan," the letter stated. "Our residents deserve a reliable, affordable and integrated public transport system."
Ms Reeves is yet to respond to Mr Maguire's letter.
Elsewhere, political chiefs from across the West of England Combined Authority (Weca) region said the funding for their areas would be a "turning point" for the West.
Of the cash allocated, around £200m will be earmarked for the development of a mass transit network covering Bath, Bristol, South Gloucestershire, and North Somerset.
Another £150m will be used to improve rail infrastructure across the South West and support ambitions for four trains per hour across the rail network.
Sarah Warren, deputy council leader and cabinet member for sustainable Bath and North East Somerset, said: “This investment marks a turning point for sustainable transport in our region. It is a huge opportunity to deliver a cleaner, greener and more connected future that our communities deserve."
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