More than 100,000 people have signed a letter demanding a Final Say referendum in less than 24 hours following the march of a million people on parliament.
The letter, organised by People’s Vote and The Independent, calls on officials in the UK and the EU to do everything they can to give the people of the UK a vote on the final Brexit deal – urging them to let the nation show whether or not the deal put forward by prime minister Boris Johnson stands as “the will of the people”.
Before the final Brexit deadline, it will be delivered simultaneously to Downing Street and the Houses of Parliament, as well as the European Parliament and the Consilium Building in Brussels where the European Council meets.
In addition, MPs will be individually sent a list of signatories from their constituencies.
The support for the petition comes after hundreds of thousands marched through the streets of London on a crunch day for Boris Johnson’s deal.
Organisers say a million people took to the streets of the capital at the height of the protest to call for a second vote on Brexit.
And as Boris Johnson’s deal was delayed by the Letwin amendment crowds erupted into cheers on Parliament Square – a roar so loud MPs said it could be heard inside the Palace of Westminster opposite.
Labour's Sir Keir Starmer has thrown his weight behind the move, urging campaigners to send a message to the powerful.
In an email to supporters, he said: “Today, we're marching together to say we trust the people, not Boris Johnson, to solve this Brexit crisis. And we’re sending a message to the powerful.
"The Prime Minister will be inside the gates of Parliament for an emergency debate on his hard Brexit proposal which is a million miles away from what he promised in 2016.
“But I am proud to stand with the people – from all walks of life and every corner of our country – outside. And today we will be asking you to add your name to a letter we will send to the powerful in the UK and in the Europe
“It's a letter from the people that will go, not only to the Prime Minister, every MP and MEP, as well as the head of all the heads of government among the 27 other European member states.
"It asks them to honour our shared democratic values; it asks them not to turn away from us now and deny us the chance for the final say. Whether you're joining us today or not, add your name to the letter now and send a message to the powerful. “
The Final Say letter can be signed at www.peoples-vote.uk/letter.