Police leave has been cancelled across South Yorkshire as officers prepare for a large demonstration in Sheffield tomorrow (Saturday).
Two potential gatherings are expected in the city centre involving the English Defence League (EDL), United Against Fascism (UAF) and other groups.
Barriers have already been erected in Barker’s Pool to help control the crowds and traffic.
A spokesman said the police force had a duty to allow for peaceful assembly or protest, and it was working with local businesses to minimise the impact of the gatherings.
“SYP is looking to manage any event within the confines of the city centre, as there is no proportionate power in law to ensure assembly at another location,” they said.
“Most if not all businesses will remain open on the day and people are encouraged to still come into Sheffield.”
But some roads will be closed from around 11am on Saturday using barriers.
Details of the exact road closures will be issued later today (Friday).