The European Council President has delivered a stinging attack on those who promoted Brexit with no plan to carry it out, saying there would be a "special place in hell" for them.
Donald Tusk was giving a joint press conference with Irish Taoiseach Leo Varadker after the pair had talks in Brussels about the UK's impending departure from the European Union.
Mr Tusk said he and Mr Varadker had been discussing actions for the "possible fiasco" of a no-deal Brexit, before he ended his statement with the inflammatory comment.
"By the way, I have been wondering what the special place in hell looks like for those who promoted Brexit without even a sketch of a plan how to carry it safely," Mr Tusk said.
He repeated the same words on his personal Twitter account immediately after the statement.
It provoked plenty of responses from pro-leave identities, including arch-Brexiteer Nigel Farage, who labelled Mr Tusk a bully.
Earlier Mr Tusk said people all over Europe hoped that the UK would change its mind about the withdrawal but that both British Prime Minister Theresa May and Opposition Leader Jeremy Corbyn were "pro-Brexit" and that there was no leadership for remain in the UK.
Mrs May, who supported the Remain campaign in the 2016 EU referendum, will travel to Brussels on Thursday hoping to renegotiate her beleaguered withdrawal deal and make legal changes to the Irish backstop plan.
The backstop is a plan to prevent a hard border between Northern Ireland, which is part of the UK, and EU member state the Republic of Ireland, regardless of what happens in Brexit negotiations.
She hopes to get changes made before presenting an updated deal to the UK Parliament next week, although Mr Tusk said that the agreement was "not open for renegotiation".
"I hope that tomorrow we will hear from Prime Minister May a realistic suggestion on how to end the impasse," he said.
