Leo Varadkar has said he believes a Brexit deal is still possible, but that the PM’s current proposals do not “form the basis for deeper negotiations”.
The taoiseach (Irish PM) said a deal must be agreed ahead of the European Council summit in two weeks.
Speaking on Saturday, he also said he hoped to meet Boris Johnson next week.
Mr Johnson’s proposals would see NI stay in the European single market for goods, subject to approval every four years by the Northern Ireland Assembly.
Northern Ireland would leave the EU customs union along with the rest of the UK – resulting in new customs checks.
Mr Varadkar told the Irish national broadcaster RTÉ News there was still time for the UK government to put forward further proposals.
“I think a deal