NICOLA Sturgeon has joined forces with the First Minister of Wales to demand an urgent crunch meeting on Brexit.

The two leaders wrote to Theresa May calling for an emergency session of the Joint Ministerial Committee on European Negotiations (JMC-EN), which is made up of ministers from the UK and devolved governments.

It comes amid continuing fury that Scottish and Welsh ministers were not shown details of Mrs May’s draft Brexit deal in advance.

In their letter, Ms Sturgeon and Carwyn Jones write: “The UK Government’s handling of the deal reached is symptomatic of the chaotic approach to the negotiations and the lack of any meaningful engagement with the devolved administrations.

“Despite a meeting of the JMC-EN on Tuesday evening and a meeting of the British Irish Council last Friday, we were not shown or provided the detail of the draft withdrawal agreement or the political declaration.

“We continue to make the point at every opportunity that the UK Government cannot agree the UK’s position on the withdrawal agreement or the future relationship of the EU27 without the input of the devolved administrations.

“We are calling for a meeting of the Joint Ministerial Committee to enable us to discuss the details of the withdrawal agreement and to input into the political declaration before this is finalised.

“Given the future relationship will cover a number of matters within our devolved competence and crucial matters that will impact on the citizens of Wales and Scotland, it is essential we are involved. A meeting next week must be a priority.”

The full, 585-page draft Brexit deal was finally published on Wednesday night following months of painstaking negotiation.

But its contents immediately sparked a furious backlash which now threatens to topple Mrs May's Government.

Angry pro-Brexit Tory MPs accused her of tying the UK to EU rules.

Meanwhile, controversy centred on proposals to treat Northern Ireland differently to the rest of the UK in a bid to avoid a hard border with the Republic.

The plans would keep Northern Ireland aligned more closely with EU rules in key areas. SNP leaders have insisted Scotland should receive similar treatment.

Ms Sturgeon pointed out there isn’t "a single mention of Scotland in the agreement" and argued it "disregards our interests, and puts Scotland at a serious competitive disadvantage".

The Scottish Government previously accused UK ministers of carrying out a "power grab" in their post-Brexit plans to take back powers from Brussels.