"The UK's positions are far apart from what the EU can accept. I have repeated the EU's request to withdraw the contentious part of the draft Internal Markets Bill by the end of September," told a news conference in Brussels.

He was speaking after a meeting with UK Cabinet Office Minister Michael in a Joint Committee tasked with implementing Britain's Withdrawal Agreement and a proposed Internal Markets Bill that would undermine the divorce deal struck last year.

"We maintain that the bill, if adopted in its current form would constitute an extremely serious violation of the protocol and an essential part of the Withdrawal Agreement and of international law," Sefcovic said.

He added that Monday's joint committee meeting had shown "the urgent need to move into a higher gear" in the coming days before the next meeting in mid-October.