The Irish leader said everyone in Ireland should be afraid of a no-deal Brexit as he rejected criticism that he was engaging in "project fear"-style rhetoric over a united Ireland after the UK's exit from the bloct. His remarks come after DUP leader Arlene Foster said the Taoiseach needed to "dial down the rhetoric". But speaking in Kilkenny, Mr Varadkar hit back said: "In terms of engagement, I have never refused a meeting request from the DUP and never refused a phone call from Arlene either and she has my number.
"I wouldn't accept that criticism at all. What I would point out though that when it comes to negotiations on Brexit, they happen between the European Union, including Ireland on the one hand, and the UK Government on the other.
"In terms of fear, I think we should be afraid of a no-deal Brexit."
The Taoiseach warned Ireland could be faced with both security and constitutional threats if Britain leaves the EU without a withdrawal agreement.
He said: ""No political party is involved in these negotiations.
Brexit news: Leo Varadkar has issued another no deal Brexit warning in Ireland (Image: PA )
Brexit news: Leo Varadkar warned of the serious threats to Ireland (Image: REUTERS )
"They are inter-governmental by nature and I have spoken to the new Prime Minister by phone and I have invited him to come to Dublin to talk about these matters some more without any pre-conditions, so that's really an invitation for him to decide on.
"A no-deal Brexit would have very serious impacts on the economy, north and south, and on Britain.
"It could have security implications as well