A large-scale disturbance in Leicester followed an international cricket match between India and Pakistan which diverted the police from the Queen’s funeral.
According to Leicestershire Police, they received a number of resources, including the deployment of additional officers from the West Midlands, Derbyshire, and Nottinghamshire.
They said Thames Valley Police horses were also stationed in the city.
Extra assistance was provided through the normal mutual aid process and some officers were diverted from going to London to help.
The disorder has led to 47 arrests, with a faith leader saying it was sparked by a “country-based dispute” after the cricket.
Amos Noronha, 20, was sentenced to 10 months in prison after pleading guilty to possession of an offensive weapon in connection with the violence.
Suleman Nagdi, from the city’s Federation of Muslim Organisations, said it was the first time he could remember the communities becoming violent.
The violence is believed to have been between Muslim and Hindu communities, with Mr Nagdi saying “loyalties kicked in” after the cricket.