UPDATED: Fourteen people were arrested and two police officers were injured today when anti-fascist campaigners protested against a nationalist march, according to police.
A Sussex Police spokesman said that the 250 protesters were kept apart by police but members of Unite Against Fascism (UAF) clashed with police.
A total of 14 arrests were made for public order offences, assault and to prevent a breach of the peace.
Click here for pictures of the march and protest.
Click on play below to replay the liveblog, which has detailed coverage of this afternoon's events.
The English Nationalist Alliance gathered at 12.30pm outside Brighton station before marching through the North Laine to Victoria Gardens.
After a short stay, they then marched back to the station and disbanded.
Two police officers sustained minor injuries and received medical attention.
One protester also received injuries, for which they received treatment and for which two people have been arrested, the spokesman said.
The spokesman added: "Using powers authorised by the chief constable, police attempted to ensure that both protests took place in a safe location but close enough to one another to enable them to
make their points peacefully.
"Unfortunately a small group from the counter-demonstration resisted this and threw missiles at the police.
"At no time did either group have the opportunity to physically confront one another, the only disorder being directed towards the police."
Chief Superintendent Graham Bartlett added: "The right to peaceful protest is an important part of Brighton and Hove life.
"It is our aim to allow protesters the freedom of speech to express their views safely, without causing disruption and disorder to residents, visitors and businesses in the city.
"I again urge those who wish to hold demonstrations in the city to abide by the law and notify the police of their plans in advance, so we can jointly plan a safe and visible event that respects
others' rights to go about their business free from intimidation and violence."