Protesters calling for a referendum on the final Brexit deal are gathering in London for what organisers say will be the “biggest, loudest and most important” demonstration of its kind.
The event, organised by the People’s Vote campaign, will see a march ahead of a rally in Parliament Square.
Young voters will lead the march, which organisers are expecting to be more than 100,000-strong.
Prime Minister Theresa May has already ruled out such a referendum.
MPs from all the main political parties are supporting the demonstration.
Meanwhile, former UKIP leader Nigel Farage is leading a pro-Brexit rally at Harrogate Convention Centre later.
