The EU has warned the incoming British prime minister, likely to be Liz Truss, that any unilateral action to scrap part of the Brexit deal is legally and politically of “great concern” across the continent.
The warning by the European Commission vice-president, Maroš Šefčovič, comes just days before the new prime minister is expected to confirm they will press ahead with new laws to dismantle the arrangements for Northern Ireland.
