Brexit deal 'a week away' but May must agree on customs union, says Barnier

Deal could be done by next Wednesday but PM must abandon red line, says EU negotiator

Michel Barnier has claimed a Brexit deal could be within reach by next Wednesday but warned the prime minister that only by abandoning a key red line and agreeing to a customs union can impediments on trade between Northern Ireland and the rest of the UK be avoided.

The British government would have to give up on its plans for free-trade deals with China and the US under such an agreement, the EU's chief negotiator insisted, but otherwise a customs and regulatory border within the territory of the UK will have to be erected.

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