Four people have been arrested after police officers were assaulted during a protest and counter-protest in Bristol.
One officer is receiving treatment at a hospital, Avon and Somerset Constabulary said.
An anti-immigration protest was organised for the Redcliffe area of the city on Saturday.
The force criticised a group within a counter-protest that was “intent on causing disorder”.
Four arrests were made after several assaults on officers were recorded, police said.
A fifth person was arrested for refusing to provide their details.
Chief Inspector Keith Smith said: “It is disappointing a group within the counter-protest has seemingly been intent on causing disorder.
“We’ve made several arrests and ordered a number of counter-protesters to leave central Bristol.
“I want to thank the officers who have worked tirelessly today to enable both protests to be kept separate, but it is totally unacceptable that officers have been assaulted.
“Criminal investigations will be carried out into each incident as we seek to bring those responsible to justice.
“One officer has been taken to hospital for injuries they sustained while on duty. We await a further update regarding the level of injury.
“We will ensure the welfare of assaulted officers is prioritised too.”
A dispersal zone and enhanced powers will remain in place until 10pm.
