THE governments of Wales, Scotland and Northern Ireland have joined in a scathing attack on Westminster's approach to devolution, accusing it of "denying us any meaningful input" into investment plans for each nation..

Ministers from the three administrations came together today saying they had been "ignored" in plans to boost post-Brexit spending across the United Kingdom.

The UK government's Levelling Up Fund and Community Renewal Fund were launched after Brexit to replace UK-wide EU investment schemes.

Today the ministers issued a joint statement, claiming their governments had been side-stepped by Westminster as to deciding how and where the money should be spent.

Welsh finance minister Rebecca Evans, Scottish trade minister Ivan McKee and Northern Irish finance minister Conor Murphy announced "shared concerns about the UK government’s decision to bypass democratically-agreed devolution arrangements" to deliver the funds.

They said Westminster "ignored the devolved governments' efforts and requests to input to the development process".

The UK government is now using its powers under the Internal Market Act "to bypass us completely," they claimed.

Their warning comes the day after the UK's Department for International Trade announced plans to set up export and investment hubs in Cardiff, Edinburgh and Belfast.

Following the announcement, Wales' deputy economy minister, Lee Waters, said his department had been given "no advance notice" of the plan for Cardiff, which the UK government said would bring a team of "export and investment specialists" to advise local firms on boosting their global trade.

READ MORE: UK government plan for export hub in Cardiff aims to 'bypass' Welsh Government

Ms Evans and the other devolved ministers said decisions on spending the post-Brexit funds had been "made entirely" by the UK government.

"This falls far short of commitments made during the EU referendum for all these powers to be fully devolved after [Brexit]," they claimed.

Simon Hart, the secretary of state for Wales, poured cold water on the idea his government was ignoring the devolved administrations.

"I absolutely do not recognise the notion or claim the Welsh Government is being squeezed out the loop," he said today.

He said "anybody who believes in devolution should welcome" the Levelling-Up Fund, which would ensure money was "reaching the places it needs to reach".

The National Wales: Simon Hart, Conservative MP and the UK government's secretary of state for Wales.Simon Hart, Conservative MP and the UK government's secretary of state for Wales.

He accused the Welsh Government of "continuing to fret about whether [the investment] undermined its power basis" at a time when "we should be linking arms and welcoming the fact extra money is coming into Wales".

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But the devolved administrations claim the financial support announced so far by Westminster "is not new money".

They also said the current system could lead to inefficiency and inequality if they were not allowed a seat at the decision-making table.

"Denying us any meaningful input, harms the effectiveness of these funds, will duplicate resources, and risks value for money and the achievement of better, fairer outcomes," they said.

But Mr Hart rejected the idea the governments in Wales or elsewhere in the UK were being undermined.

"This is not a power grab," he said, insisting the Welsh Government would not be "deprived of any powers" as Westminster continued to roll out its UK-wide funding schemes.

He said the "idea we should restrict ourselves" to spending in fixed geographical areas was "very frustrating", and an obstacle to "strategic economic growth".

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But the devolved administrations say they are best-placed to know how and where to use the funding.

They argue successful, devolved structures "already exist specifically to deliver economic development" and should not be replaced by "a new, separate layer of bureaucracy".

Any resolution of the matter must come before further investment policies are devloped via the Shared Prosperity Fund, they added, before calling for "a clear plan" for how and when the devolved governments could take part.

The ministers said they would seek an urgent meeting with the Treasury to raise these concerns.

In response to their concerns, a UK government spokesman told The National that "Wales has two governments" and it was "absolutely right" Westminster should invest directly here.

He said the funding schemes would work in partnership with Welsh councils "who know their communities well".

People in Wales should expect "significant UK government investment" in the coming months and years, he added.