British Prime Minister Theresa May stated that US President Donald Trump had advised her to sue the European Union.
"Sue the EU. Not go into negotiations — sue them," May told BBC television.
"What the president also said at that press conference was "Don't walk away. Don't walk away from the negotiations. Then you're stuck," she added.
According to May, it is non-negotiable that the UK is leaving the Customs Union.
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"We will leave the Single Market and Customs Union, and get out of the Common Agricultural Policy and the Common Fisheries Policy. We will have that independent trade policy and a new UK-EU free trade area… We will not tolerate a hard border between Northern Ireland and Ireland or between Great Britain and Northern Ireland… None of these things are up for debate," the Prime Minister said on Facebook.
During a joint press conference with May, Donald Trump stated that relations between London and Washington were at the "highest level of special," also denying reports of him criticizing the head of the British government in an interview with The Sun, published on Thursday.
"I did not criticize the prime minister. I have a lot of respect for the prime minister. Unfortunately, there was the story that was done, which was, you know, generally fine, but it did not put in what I said about the prime minister, and I said tremendous things… It's called fake news," Trump stressed.
The US president has also faced major protests in Britain against his policies during a four-day visit to the country.
Brexit Plans or "No Brexit at All"
Earlier in the day, the prime minister stated in her article for the Daily Mail that there might be no withdrawal of the UK from the bloc at all in light of the revolts by both pro- and anti-EU MPs against her White Paper.
"This is the scale of the opportunity before us and my message to the country this weekend is simple: we need to keep our eyes on the prize. If we don't, we risk ending up with no Brexit at all. This is a time to be practical and pragmatic — backing our plan to get Britain out of the European Union on March 29 next year and delivering for the British people… I am going to fight for our Brexit deal — because it is the right deal for Britain," May said in her article.
She also underlined the fact that leaving the bloc would restore the country's national sovereignty, letting the UK parliament adopt laws and the UK courts to enforce them with no obstacles.
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In addition, the White Paper proposed to establish a new security partnership in order continue exchange of intelligence information between Britain and the European countries, as well as Londons's participation in the work of the Europol and the Eurojust.
Last week's discussions on the matter resulted in the resignations of Brexit Secretary David Davis and Foreign Secretary Boris Johnson in protest against May's stance.