The DUP is understood to be most concerned about this issue too. EU and Northern Ireland's negotiators are working to find solutions to the issues that need to be overcome before a new Brexit deal can be presented at a recent days Democratic Unionist Party summit later this week . Despite progress over recent days , disputes remain over establishing customs arrangements in UK that can gain approval from both sides. Brexit Democratic Unionist Party has previously said it will not support Boris Johnson's current plan to impose a customs border in the Irish Sea .
EU and Northern Ireland's negotiators are working to find solutions to the issues that need to be overcome before a new Brexit deal can be presented at a recent days Democratic Unionist Party summit later this week . Despite progress over recent days , disputes remain over establishing customs arrangements in UK that can gain approval from both sides. Brexit Democratic Unionist Party has previously said it will not support Boris Johnson's current plan to impose a customs border in the Irish Sea .