Michel Barnier warns UK of 'unavoidable' post-Brexit trade barriers

The EU's chief Brexit negotiator has warned Britain "the time has come to make a choice" as he warned of "unavoidable" trade barriers.In a visit to Downing Street on Monday, Michel Barnier outlined a robust stance over the impact on trade in goods and services if the UK leaves the single market and customs union.It follows a recent bout of infighting within the Conservative Party, over whether or not Britain should retain a customs union with the EU beyond 2019.