Barnier says no UK clarity on Brexit responsibilities for Ireland
Ireland's Taoiseach Leo Varadkar also called for more detail on how a transition period might work after the UK leaves the Union in 2019, while Sinn Fein president Gerry Adams said May delivered nothing but the same old story.
But the leader of the Prime Minister's DUP allies Arlene Foster claimed she had outlined a positive vision for the future during Friday's keynote speech in Florence.
Barnier said: "Today's speech does not clarify how the UK intends to honour its special responsibility for the consequences of its withdrawal for Ireland.
"Our objective is to preserve the Good Friday Agreement in all its dimensions, as well as the integrity of the Single Market and the Customs Union."
After Brexit the UK's only land border with an EU state will be that on the island of Ireland and it is one of the first issues up for negotiation between the UK and Europe before they can move on to talks about future trade relations. ■