The EU has published its two most detailed Brexit policy documents to date and they suggest that the UK's exit will be a slow process.

Issues covered in the papers include the UK's need to fulfil commitments which it has made to contribute to the EU's 2014-2020 budget plan.

In the financial document, the complicated issue of the UK's involvement in the European Investment Bank is also discussed. The EU states that the UK will not be immediately reimbursed the €10bn-plus which it has tied-up in the European Investment Bank.

The UK is a net contributor to the fund which is used to finance projects across the union. It is likely that its stake will be liquidated over a number of years. The terms of this withdrawal could be used by the UK to negotiate deals in other areas.

The EU has called for the power of the European Court of Justice to be recognised by the UK and for it to have powers to take action if Britain is accused of violating its side of the exit deal.

Europe's highest court would also be guaranteed the right to conclude all pending cases when the UK goes.

The Commission's negotiators are also calling for the rights of EU citizens in the UK and UK citizens in the EU to be guaranteed by a blanket agreement - rather than dealing with individuals on a case by case basis.

During last night's leaders debate ahead of the UK's General Election, Theresa May repeated her "no deal is better than a bad deal" slogan when asked if she was prepared to walk away from Brexit talks.

Labour leader, Jeremy Corbyn, said that his party does not envisage the UK leaving without a deal.