A woman arrested during an anti-immigration protest and counter-protest has been released from police custody.

A group opposing the government’s use of hotels to house asylum seekers gathered in Bristol’s Castle Park on Saturday afternoon, and were met with a much larger group of counter protesters.

A 37-year-old woman was detained on suspicion of assaulting an emergency worker, Avon and Somerset Police said, and had been released under investigation.

The force said no officers sustained serious injuries or required hospital treatment, but said inquiries would be carried out after reports of assaults on staff.