Thousands of people marched through central London to demand the public get a final say on Brexit.

The Put it to the People march began at midday as demonstrators began marching from Hyde Park Corner towards Parliament.

Large EU flags were flown by people throughout the length of the crowd.

Marching bands, whistles, cheers and chants provided a constant backdrop of noise.

People were led in chants for a "People's Vote".

Leader of the Liberal Democrats Sir Vince Cable tweeted his support for a second referendum after launching the Put it to the People march in central London.

Alongside two photos of him with demonstrators, he wrote: "Great to kick off the #PeoplesVoteMarch just now.

"There is a huge turnout of people here from all walks of life, of all ages and from all over the country.

"We are a Remain country now with 60% wanting to stop the Brexit mess. #ExitfromBrexit #PutitToThePeople"

The crowd of demonstrators stretched from Hyde Park down to Piccadilly.

Placards carried among the crowd call on the Government to "Revoke Article 50".

Others read: "We're marching to demand a People's vote" and: "We love EU".

Many people wore yellow fluorescent stickers, reading: "Bollocks to Brexit. It's not a done deal."

The Union flag, the Scottish saltire and flags of other European nations were flown above marchers.

Sadiq Khan tweeted a video of the countdown launching the Put it to the People march, with the London mayor holding up a banner at the front of demonstrators.

He wrote: "And we're off!

"Here in London, thousands of people from across our city and country have come together with @peoplesvote_uk to send a clear message: Enough is enough - it's time to give the British public the final say on Brexit. #PeoplesVote #PutItToThePeople."

Demonstrators calling for a second Brexit referendum packed out Parliament Square as they waited for a rally to begin.

Large screens dotted along Whitehall told people how to text and tweet their support for the Put it to the People march.

Music was played across the square where thousands of people have gathered.

On a small stage on Whitehall, a group of people sang songs reworded with anti-Brexit lyrics.

Speakers gathered behind a large stage on Parliament Square where MPs and celebrities addressed the crowd.

Rally hosts Mariella Frostrup and Richard Bacon took to the stage in Parliament Square.

They claimed that an initial count of demonstrators shows that the amount of people taking part in the march has topped one million.

The Independent Group tweeted a video of their MP Anna Soubry from the Put It To The People march, cheering when the organisers claimed that 1,000,000 people were in attendance.

Alongside the video posted on the parliamentary group's official Twitter, they wrote: "We've just heard how many people have come along to the #PutItToThePeople march in London today!

"Incredible support from people along the route too. Thank you. #ChangePolitics."

Nicola Sturgeon tweeted a photo from the Put it to the People march where she addressed crowds in Parliament Square.

The Scottish First Minister wrote: "Massive crowds at #PutIttothePeople rally in London today.

"Good to be there."