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Violence could erupt on the streets of Britain in the wake of Brexit according to a secret report by European officials.

Senior intelligence officials warned that civil unrest and rioting is almost inevitable and the UK will be left 'unstable' for decades.

The EU report also claims there will be independence referendums in both Scotland and Northern Ireland with 18 months of the UK leaving the EU.

Leading Brexiteer Jacob Rees-Mogg dismissed the reports and told MailOnline 'it sounds as if EU intelligence is an oxymoron'.

The claims emerged today amid mounting concern at furious pro-Brexit protests in cities including London and Leeds that have seen MPs abused and arrests following scuffles with police.

Health Secretary Matt Hancock yesterday refused to rule out martial law being imposed after a no deal Brexit - admitting the powers were available amid claims officials have been 'war gaming' the possibility.

< PREVIOUS SLIDE SLIDE 1 of 3 NEXT SLIDE > The claims emerged today amid mounting concern at furious pro-Brexit protests in cities including London and Leeds (pictured earlier this month) that have seen MPs abused and arrests following scuffles with police © Provided by Associated Newspapers Limited

An EU source told the the Daily Mirror: 'Analysis of the threat levels in Britain is being shared at the top of the EU as we formulate policy for the years ahead. The assessment is that violence is almost inevitable no matter what.

'They are worried that if the current deal goes through the right-wing will kick off. If there's no deal everybody will object and kick off. If there's a second referendum, the right will kick off. The right kicking off is causing most concern.'

'This analysis is being kept very quiet for ob­­­­vious reasons.'

Tory MP Michael Fabricant told MailOnline: 'The EU should not judge the UK by the standards which sadly exist on the continent of Europe.

'We'll just settle down with a cup of tea - from non-EU India.'

© Provided by Associated Newspapers Limited The Brexit protest on January 19 saw over 5 arrests by the police as roads were blocked off and traffic brought to a standstill

The report was completed for the benefit of EU heads of state, including British Prime Minister Theresa May.

Intelligence services around the bloc were used to make the assessment, however, MI5 was not involved, reports say.

One senior Government source said: 'We are seeing civil disobedience across Europe and a growth of the far-right.

'Anything which changes the status quo, like Brexit, gives those people the opportunity to foment division. We could see protests and public disorder offences.'

The extreme measures of martial law are being considered as part of a major response if the UK crashes out of the EU at the end of March.

© Provided by Associated Newspapers Limited Anti-Brexit supporters hold placards and flags as they demonstrate outside the Houses of Parliament in London

© Provided by Associated Newspapers Limited People take part in an anti-Brexit rally at the Irish border near Carrickcarnan, Co Louth over the weekend as protests are held around the UK

Offices in central Government have been discussing whether to use wide-ranging powers in the Civil Contingencies Act 2004 - which include curfews, travel bans and deploying the army.

The possibility of using the act for Operation Yellowhammer - the no-deal Brexit plan - was apparently raised for the first time last week.

'As no-deal preparations are accelerated and training is rolled out to civil servants, questions have been raised about the legislation and how it could be used in the event of a no-deal Brexit,' a source said.

Mr Hancock said there was no 'specific' plan for martial law, but did not completely rule it out.

'Of course Government all the time looks at all the options in all circumstances,' he told the BBC's Andrew Marr show.

'It remains on the statute book but it isn't the focus of our attention.'

A Downing Street spokesman said: 'Respecting the referendum decision means leaving the EU.

'The PM has said that there will be disruption in the event of no deal, but as a responsible Government we are taking the appropriate steps to minimise this disruption and ensure the country is prepared.'

Meanwhile, MPs face sitting longer and having their holidays cancelled as efforts are ramped up to get crucial legislation through Parliament in time for the schedule March 29 departure date.