SCOTLAND's Brexit minister has vowed to publish a UK paper on the impact of leaving the European Union if he is given a copy.

Mike Russell insisted that the document, a leaked copy of which has been reported by Buzzfeed News, "needs to be published".

He has written to UK Brexit Secretary David Davis, urging him to share the research with the Scottish Government.

Russell said: "This is not our analysis and we do not see it as our responsibility to make arrangements on confidential handling.

"I want to be clear that if you send the analysis to us we will make it public."

He also stated: "The Scottish Government considers that the public have a right to know the impact on jobs and living standards of the UK Government's decision to pursue the UK's exit from the EU and therefore that this analysis should be made publicly available."

The leaked report comes after a study by the Scottish Government found that a "no deal" Brexit would cost Scotland £12.7 billion a year by 2030.

Meanwhile, it has been reported that the leaked study - EU Exit Analysis - Cross Whitehall Briefing - found that securing a trade deal with the United States would fail to make up for the hit the economy will take from curbing migration from the EU.

New customs arrangements, border checks and the loss of market access in certain sectors on top of the impact of immigration reforms will cause the main damage to the economy, the Brexit analysis prepared for the Department for Exiting the EU (DexEU) found.

Several immigration policies were analysed in the papers to assess what impact they are likely to have on UK finances, according to BuzzFeed News.

The research found replacing free movement with a system similar to that in place for non-EU citizens would have a bigger effect than the 0.2% boost that a US trade deal could counteract.

Looser restrictions would still cancel out the benefits of increased trading across the pond.

Speaking about the report, Russell told MSPs on Holyrood's Europe Committee he was "clear we will not take it on conditions of confidentiality or secrecy".

He said: "The document needs to be published. I've asked to have a copy of it, if I receive a copy of it then I will make it available."

First Minister Nicola Sturgeon has already described the leaking of the papers as a "watershed moment in the Brexit negotiations", adding the "case for a hard Brexit is dead in the water".

On Tuesday, she said: "The UK Government's own analysis makes clear that leaving the EU will, in all circumstances, harm the economy of every nation and region in the UK - and underlines the case that remaining in the single market and customs union is the best way to minimise that economic harm."