The impact of Brexit on Northern Ireland - and its border with the Republic of Ireland - is one of the key issues being discussed in the early stages of UK-EU negotiations. Some feared a return to border checks that could undermine the Good Friday peace agreement and damage the economy. On 7 September the BBC reported that the EU wants Northern Ireland to have a different Brexit deal from the rest of the UK. The document says the UK should take responsibility for finding a ‘unique solution’ so that people can work, go to school or get medical treatment either side of the Irish border. The EU's chief negotiator Michel Barnier will publish details later. He said ‘a lot more substantive work’ is needed on the border issue.