A large section of Leicester city centre will be closed to traffic on Saturday because of a planned protest by the English Defence League (EDL).
A counter-protest by Unite Against Fascism (UAF) is also due to be held.
Marches are banned but the groups can still hold static demonstrations in Humberstone Gate East.
Road closures, staffed by police officers, will be in place from 0900 BST to 1800 BST.
The area affected is bordered by Belgrave Gate to the north and Granby Street to the south, extending as far east as the inner ring road, though the ring road itself will remain open.
Some bus routes will also be disrupted, so temporary stops are being set up in Belgrave Gate and Abbey Street.
The council has warned that the city centre will be more crowded than usual, particularly around Humberstone Gate, Belvoir Street and Charles Street.
Police officers will be stopping and searching people on the day.
The Leicestershire force has urged people to "let them handle the event", and not to come into the city just to show opposition to the protest.
A map showing full details of the closures is available on the council's website.
BBC News