THOUSANDS of pro-European campaigners are expected to travel from Oxfordshire to London tomorrow to join a huge anti-Brexit march.

The 'People's Vote' demonstration looks set to be one of the biggest protests in British history.

It comes as a viral petition to revoke Article 50 – the trigger for Britain leaving the EU – was signed by thousands of voters in the county, suggesting Oxfordshire is one of the areas most behind remaining in the union.

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Around five per cent of residents in the city's two constituencies had signed the petition this afternoon.

Ahead of the march, Oxford for Europe said it had three fully booked coaches, and a fourth being organized by an allied campaign, ready for the march.

Other coaches will set off from Burford, Banbury and Didcot.

More than 8,000 leaflets have been delivered in the Oxford area to promote the march, which follows a similar event in October, when around 700,000 people took to the capital.

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Oxford's marchers will gather once again at the Brook Gate cafe in London's Hyde Park, just south of Speakers Corner. The march begins at midday on Park Lane before a rally and speeches in Parliament Square.

More than 100 campaigners from Didcot, Wallingford and Wantage area are also set to join the march.

Anne-Marie Simpson, Peoples Vote Coordinator for the Wantage and Didcot constituency, said: “Brexit is already causing deep damage to Britain, threatening local jobs, businesses, the NHS and living standards in South Oxfordshire.

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“The Put It To The People march may very well be our last chance to demand a democratic final say on this mess, before it’s too late. This is High Noon for Brexit.

“Anyone who cares about the future, anyone who feels betrayed by broken promises in the last referendum, anyone who wants to prevent years more of this madness is welcome to join us to make their voice heard. It’s now or never.”

Pro-leave campaigners say Britain has already had a 'People's Vote' and the result of the 2016 referendum should be respected.