An anti-Brexit, pro-EU supporter holds a placard during a protest across the street from the Houses of Parliament in London.
Tens of thousands of people demonstrated in London on Saturday calling for a second vote on Britain's departure from the European Union.
"Brexit is terrible not only because we want to keep things like it is, but because it is important to be within, in order to make changes".
"I was in deep tears when the referendum happened, it looked like the future was pretty bad", said Chiara Liduori, a 40-year-old Italian living in London.
Both the Conservatives and the main opposition Labour Party oppose holding another Brexit referendum, but the smaller, centrist Liberal Democrats support a new vote.
Trade minister Liam Fox, an arch eurosceptic, insisted that the prime minister was still prepared to walk away from the talks if no satisfactory deal was reached.
Meanwhile, Foreign Secretary Mr Johnson said people would not tolerate a "bog roll Brexit" that was "soft, yielding and seemingly infinitely long".
The People's Vote campaign, which organized the march, argues that public opinion is turning against Brexit as the economic costs become clearer.
Writing in the Sun he said: 'Across the country I find people who - whatever they voted two years ago - just want us to get on and do it.
The British government and business leaders clashed in a deepening row over Brexit on Sunday after a senior minister accused companies of issuing "completely inappropriate" threats and undermining the prime minister.
"Brexit is not a done deal".
Sir Vince is expected to say Brexit is not a "done deal" or inevitable and can be stopped. Others, including Treasury chief Philip Hammond, want to keep closely aligned to the bloc, Britain's biggest trading partner.
Amid the uncertainty, European Union leaders are growing frustrated with what they see as a lack of firm proposals from the U.K about future relations.
In it they urge Mrs May to warn her European counterparts that despite their "intransigent and punitive stance" they can not delay or block Brexit. A paper setting out the U.K. government position on future relations, due to be published this month, has been delayed until July because the Cabinet can not agree on a united stance.
The second anniversary of Britain's landmark referendum was also marked elsewhere in Europe, with the organizers of one pro-EU march in Berlin claiming to have attracted 1,000 participants.
On Friday, Airbus said that if Britain were to leave the European Union without a deal it would be forced to reconsider its long-term position and put United Kingdom jobs at risk.
German carmaker BMW (BMWG.DE) has warned the company would have to make contingency plans within months if the government did not soon clarify its post-Brexit position and German industrial group Siemens (SIEGn.DE) said it urgently needs clarity on how its operations would have to be organised.