A UKIP-organised march in support of Brexit which controversial activist Tommy Robinson is attending is taking place in London.
Meanwhile counter-protest against the former English Defence League leader, who was recently appointed as an adviser to UKIP, is also under way.
The marches come ahead of the vote in the House of Commons on Tuesday over the Prime Minister's unpopular "Brexit" deal - it is expected that the Prime Minister and her deal will be heavily defeated, which could see her tenure as Prime Minister end.
Rival marches ahead of Brexit vote
BBC News
9 December 2018
The UKIP-organised "Brexit Betrayal" march started after midday
A UKIP-organised march in support of Brexit which controversial activist Tommy Robinson is attending is taking place in London.
Meanwhile counter-protest against the former English Defence League leader, who was recently appointed as an adviser to UKIP, is also under way.
Anti-fascist groups and Labour-backed campaigners are taking part.
Scotland Yard has imposed restrictions on both marches and urged people to protest peacefully.
UKIP predicted its "Brexit Betrayal" march would be "the largest pro-Brexit event of the year", with party leader Gerard Batten telling supporters it was the "only pro-Brexit rally to be held before the vote next week".
Mr Robinson's appointment as an adviser to Mr Batten prompted a number of people to resign from the party, including former leader Nigel Farage.
Unite Against Fascism and grassroots group Momentum march against Tommy Robinson
John McDonnell, Labour shadow chancellor, urged people to join the rally against Mr Robinson, whose real name is Stephen Yaxley-Lennon.
Unite Against Fascism and grassroots group Momentum are also marching against Mr Robinson.
'Fundamental right'
Scotland Yard said it had imposed conditions - which include the marches sticking to planned routes and limits the time they take place - based on current intelligence.
Mr Robinson and his supporters met outside the Dorchester hotel on Park Lane before marching along a specified route to Parliament Street.
Police barriers are separating them from the counter-protesters, who gathered outside the BBC's Portland Place headquarters ahead of marching to Whitehall.
Deputy Assistant Commissioner Laurence Taylor of the Metropolitan Police said: "The right to protest is a fundamental right in our democratic society, but this right must be balanced against the right of people to go about their day without fear of violence, disorder or disruption."
He said police would "adopt a robust arrest policy on anyone who attends and is intent on violence and disorder".
https://www.bbc.co.uk/news/uk-politics-46495595
Meanwhile counter-protest against the former English Defence League leader, who was recently appointed as an adviser to UKIP, is also under way.
The marches come ahead of the vote in the House of Commons on Tuesday over the Prime Minister's unpopular "Brexit" deal - it is expected that the Prime Minister and her deal will be heavily defeated, which could see her tenure as Prime Minister end.
Rival marches ahead of Brexit vote
BBC News
9 December 2018

The UKIP-organised "Brexit Betrayal" march started after midday
A UKIP-organised march in support of Brexit which controversial activist Tommy Robinson is attending is taking place in London.
Meanwhile counter-protest against the former English Defence League leader, who was recently appointed as an adviser to UKIP, is also under way.
Anti-fascist groups and Labour-backed campaigners are taking part.
Scotland Yard has imposed restrictions on both marches and urged people to protest peacefully.
UKIP predicted its "Brexit Betrayal" march would be "the largest pro-Brexit event of the year", with party leader Gerard Batten telling supporters it was the "only pro-Brexit rally to be held before the vote next week".
Mr Robinson's appointment as an adviser to Mr Batten prompted a number of people to resign from the party, including former leader Nigel Farage.

Unite Against Fascism and grassroots group Momentum march against Tommy Robinson
John McDonnell, Labour shadow chancellor, urged people to join the rally against Mr Robinson, whose real name is Stephen Yaxley-Lennon.
Unite Against Fascism and grassroots group Momentum are also marching against Mr Robinson.
'Fundamental right'
Scotland Yard said it had imposed conditions - which include the marches sticking to planned routes and limits the time they take place - based on current intelligence.
Mr Robinson and his supporters met outside the Dorchester hotel on Park Lane before marching along a specified route to Parliament Street.
Police barriers are separating them from the counter-protesters, who gathered outside the BBC's Portland Place headquarters ahead of marching to Whitehall.
Deputy Assistant Commissioner Laurence Taylor of the Metropolitan Police said: "The right to protest is a fundamental right in our democratic society, but this right must be balanced against the right of people to go about their day without fear of violence, disorder or disruption."
He said police would "adopt a robust arrest policy on anyone who attends and is intent on violence and disorder".
https://www.bbc.co.uk/news/uk-politics-46495595
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