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A further seven people have been charged as police continue to investigate violent clashes between left and right wing groups in Dover and at the Maidstone Services on the M20.
The clashes happened on Saturday, January 30 and arrests were made on the day and in the following weeks.
Yesterday police arrested and charged a further six people.
Richard Williams, 31, of Bryngwran in Anglesey, Wales, has been charged with violent disorder and Nathan Waller, 18, of Maes Meurig in Gwalchmai, Anglesey, Wales, is facing the same charge.
Deaton Whitbread, 22, and James Whitbread, 39, both of Mooring Road, Rochester, have also been charged with violent disorder.
All four must appear before Folkestone magistrates on Monday, April 18.
Roy Price, 50, of Bagleys Spring in Romford, Essex, has been charged with violent disorder and bailed to appear before Folkestone magistrates on Tuesday, April 5.
Finally, Nicholas Cullin, 40, of Robins Path in Benfleet, Essex, has been charged with violent disorder and bailed to appear before Folkestone magistrates on Monday, April 18.
In addition Darren Vincent, 41, of Winchester Way, Gillingham, who was arrested on the day of the demonstrations has also now been charged with two counts of possessing an offensive weapon and been bailed to appear before Folkestone magistrates, also on Monday, April 18.
"If you are suspected of committing a crime, you will be tracked down, arrested and put before the courts," Chief Superintendent Andrea Bishop
A 46-year-old man from Merseyside, who was also arrested on the day of the protests on suspicion of assault, has had his bail extended to Thursday, March 17.
A total of 30 arrests have now been made in connection with the violence, which took place on the day an anti-fascism rally was held in Dover by left-wing groups Dover Stand Up 2 Racism (DSUR) and the Kent Anti Racism Network (KARN), and a separate demonstration involving The National Front and other right-wing organisations also took place in the coastal town.
Last month five people were arrested in connection with violence at Maidstone Service on the M20 as people travelled to Dover.
They were a 51-year-old man from Fulham on suspicion of a public order offence; a 48-year-old man from Farnborough, Hampshire, on suspicion of assault; a 26-year-old man from West Norwood, London, on suspicion of violent disorder; a 44-year-old-man from Milton Keynes on suspicion of violent disorder; and a 49-year-old man from Lichfield, Staffordshire, on suspicion of assault.
All five have been released on bail pending further enquiries until Monday, April 4.
Chief Superintendent Andrea Bishop said: "My officers are continuing to work tirelessly to identify all those responsible for offences committed both before and during the demonstrations.
"I hope our action to date demonstrates that we will not tolerate anyone who comes to Dover intent on causing trouble, and we will be relentless in our pursuit of those we suspect of bringing disorder to Kent.
"We have been working closely with police forces across the UK in making these arrests, and I believe this sends a clear message to others that it does not matter where you live. If you are suspected of committing a crime, you will be tracked down, arrested and put before the courts."