More than 40 former senior diplomats have called Theresa May to delay Brexit and hold a second referendum on the EU.
A total of 43 former ambassadors and high commissioners wrote a joint letter urging the Prime Minister not to allow the UK to leave the EU "when we do not know exactly what our final destination is".
Their intervention, organized by the People's Vote campaign for a second referendum on the European Union, takes place within 43 days of the moment when the United Kingdom has to leave the European Union and with Ms May in front of Parliament. prospect of another embarrassing defeat in Brexit in the House of Commons.
The Prime Minister has repeatedly ruled out holding a new referendum on the EU, after announcing his determination to "deliver the Brexit in time" on March 29.
But according to recent reports, its chief Brexit negotiator, Olly Robbins, would have been surprised to reveal a plan to offer MPs a choice between the Prime Minister's agreement with Brussels or a long delay for Brexit.
Ms. May minimized suggestions Wednesday, MPs: "We want to leave with an agreement – that's why we work".
Among the signatories of the letter are former ambassadors to the United States, the United Nations, Russia, Germany, France and Ireland.
Lord Kerr, former ambassador to the United States and one of the authors of Article 50 – the exit mechanism by which a member state leaves the EU – has also added its name.
In the letter, former diplomats said that there was a "powerful argument" to "return to the citizens" in order to give them the choice between Ms. May's contract and keeping in the European Union .
"The national interest of our country must always be paramount," they wrote.
"The Brexit fiasco has already weakened the UK's position in the world and we strongly advocate a change of course before it's too late."
Parliament is currently in stalemate on the European Union 's divorce agreement. May agreed with Brussels in November after massively rejecting her withdrawal agreement last month.
However, a majority of MPs have said that they would support an agreement on Brexit if the support agreement in the Prime Minister's agreement, aimed at avoiding a hard border on the island of Ireland, was amended.
A majority of deputies also expressed their opposition to what the UK leaves the EU without a withdrawal agreement, known as Brexit without agreement, albeit by a non-binding vote.
The number of deputies who declared their support for another referendum is currently too weak to obtain a majority.
Regardless of whether an agreement is ratified before March 29, the UK is about to leave the EU automatically under current legislation.