A protest in Bristol city centre has turned violent, with "projectiles" including a firework being thrown at police.
Graffiti has been sprayed on Bridewell Police Station and police dogs have been deployed to the scene.
Thousands of people gathered at a 'Kill the Bill' protest in Bristol earlier today (Sunday 21 March), demonstrating against the Government's Police and Crime Bill.
Police say they are now dealing with a "smaller number of protesters" in Bridewell Street.
Demonstrators have clashed with police, with violent scenes in the city centre.
A spokesperson for Avon and Somerset Constabulary said: "The protest is now focused on Bridewell Street so we'd advise motorists to avoid this area.
"We're aware of a small number of incidences of criminal damage during the afternoon - including graffiti -and these will be investigated
"Officers are continuing to deal with a smaller number of protestors in Bridewell St.
"They've had projectiles thrown at them, including a firework, and have been verbally abused.
"This is unacceptable behaviour and those responsible for offences will be identified & brought to justice."
Chair of Avon and Somerset Police Federation Andy Roebuck said officers have sustained suspected broken arms and ribs.
Posting on Twitter, he said: "Disgusting scenes in Bristol by a mob of animals who are injuring Police Officers, members of the public and damaging property.
"@ASPolfed are attending stations to support officers. We have officers with suspected broken arms and ribs. This is so wrong."
'This is a shameful day in an incredible year for Bristol'
Bristol Mayor, Marvin Rees said: "The violence and damage that have emerged from today’s protests are unacceptable and have nothing to do with the real work we are doing to tackle political, economic and social inequality.
"I recognise the frustrations with the Police, Crime, Sentencing and Courts Bill. I have major concerns about the Bill myself.
"Smashing buildings in our city centre, vandalising vehicles, attacking our police will do nothing to lessen the likelihood of the Bill going through.
"On the contrary, the lawlessness on show will be used as evidence and promote the need for the Bill.
"This is a shameful day in an incredible year for Bristol."