Police arrested seven men following reports of disorder in the Everton area last night (Thursday 19 May).
A large group began throwing bricks and bottles at a police car on County Road just before 11.15pm.
When further patrols arrived, they too were targeted with items and damage caused to two police vehicles, before the crowd was dispersed.
Five men were arrested on suspicion of being drunk and disorderly in a public place and one was arrested on suspicion of assaulting an officer in the execution of their duty. They were later de-arrested and will be dealt with at a later date.
A 26-year-old man from Bootle was also arrested on suspicion of violent disorder after two beer bottles were thrown towards officers.
He was taken to a police station in Merseyside and remains in custody.
Chief Inspector Jim Wilde said: "We know the vast majority of the community will be appalled to hear that damage was caused to emergency vehicles, while our officers were working to maintain order and keep others safe.
“Two key vehicles were forced to be taken off the road as a result of this despicable behaviour and will now need to be repaired.
"Thankfully none of our officers were seriously hurt, but the removal of police vehicles from service has a clear impact on the ability of our officers to attend emergencies.
"If you were in the area and witnessed any disorder around the County Road area, please come forward. Any footage, CCTV or dashcam could be vital to finding those responsible and putting them before the courts."
Please come forward with reference number 1215 of 19 May via our social media desk on Twitter @MerPolCC or Facebook ‘Merseyside Police Contact Centre’.
You can also contact the independent charity Crimestoppers anonymously, on 0800 555 111 or via their online form at: https://crimestoppers-uk.org/give-information/give-information.