European Council President Donald Tusk and Prime Minister Boris Johnson have clashed over who would be to blame in the case of a no-deal Brexit.
Axar.az reports citing BBC.
Mr Tusk said Mr Johnson risked being remembered as "Mr No Deal" - but the PM responded by saying it was Mr Tusk who would become "Mr No-Deal Brexit".
The pair are due to meet for talks at the G7 summit in France on Sunday.
Mr Tusk added the EU was "willing to listen" to the PM's ideas for Brexit - as long as they are "realistic".
But speaking at his press conference in Biarritz, Mr Tusk said he would "not co-operate on [a] no-deal".
Since becoming PM, Mr Johnson has said the UK will leave the EU on 31 October.
Mr Johnson has repeatedly stated he would prefer to leave the EU with a deal, but insists the backstop - the insurance policy designed to avoid a hard border on the island of Ireland - must be removed from the withdrawal agreement.
"I've made it absolutely clear I don't want no deal and that we've got to get rid of the backstop from the treaty and if Mr Tusk doesn't want to go down as Mr No-Deal Brexit I hope that point will be borne in mind too," he said.
Earlier in the day, Mr Tusk had used the same moniker when talking about Mr Johnson.
"I still hope Prime Minister Johnson will not like to go down in history as Mr No Deal," he said.
"The EU has always been open to co-operation. One thing I will not co-operate on is a no deal.
"We are willing to listen to ideas that are operational, realistic and acceptable to all EU member states."