Cities in England and Northern Ireland saw clashes between anti-immigration demonstrators and counter-protesters on Saturday, with police forming lines with riot shields to keep groups apart.
Bricks, bottles and a flare were thrown at police while they lined the road in Liverpool, with a chair thrown by demonstrators hitting an officer on the head.
Merseyside Police said a number of officers had been injured as they dealt with serious disorder in the city centre.
Meanwhile, in Hull, windows of a hotel which has been used to house asylum seekers were smashed.
