“If you reach an agreement, you are solemnly involved in laborious negotiations and so on, you sign, you go through your own Parliament and your own Parliament agrees. Then you decide to undermine this international agreement. At a heated meeting in London, European Commission Vice-President Maros Sefcovic gave the UK until the end of the month to abandon the provisions of the Internal Market Act or face the possible failure of talks on a free trade agreement. The dispute erupted when the EU and UK`s chief negotiators, Michel Barnier and Lord Frost, ended the latest round of talks on post-Brexit relations, including a free trade agreement, in London. The Scottish-born Brexit supporter said the deal was a “rigged referendum,” a “lethal stain” and “a humiliation of our army, police and Parliament.” The UK`s relationship with the EU has plunged into crisis after ministers rejected a request from Brussels to abandon plans to repeal important elements of the Brexit withdrawal deal. “Violation of the terms of the withdrawal agreement would violate international law, undermine confidence and jeopardize future negotiations under way,” he said. “After Loughgall and Drumnakilly, the government became cautious and concerned about the accusations,” he said. He said the EU was “not shy” if it used the “mechanisms and remedies” contained in the agreement to oppose violations if the UK did not withdraw the provisions. “Everything we do will be essential to the protection and implementation of the agreement, including, of course, when we leave the European Union.” Emergency talks were called after ministers acknowledged on Tuesday that provisions in the bill to allow the government to amend elements of the Northern Ireland withdrawal agreement would be contrary to international law. But cabinet minister Michael Gove, who heads a joint committee on the withdrawal agreement with Sefcovic, said the government was not prepared to resign.