London (CNN)Negotiations between the UK and the European Union (EU) concluded Sunday without a Brexit deal, after disputes over Northern Ireland continued to hamper talks.
“In the last few days UK and EU negotiators have made real progress in a number of key areas. However, there remain a number of unresolved issues relating to the backstop,” according to a statement from the UK’s Department for Exiting the European Union.
The “backstop” refers to an agreement to protect an open border between Ireland and Northern Ireland.
