A man lies unconscious in the street as thugs continue to stamp on his head in this sickening CCTV footage.
The attack took place on Princess Street in Manchester city centre on Saturday morning.
At the start of the minute-long clip a group of five men can be seen grappling in the street. At least two of the men are attacking the man as at least one other appears to be trying to protect him.
However after several seconds the man is forced to the floor where he is kicked repeatedly as he lies motionless in the road, appearing to have been knocked out cold.
One of the men, wearing a black jacket with his hood up, stamps on him and kicks him several times to the head with force.
Another of the men, wearing white, also appears to rifle through his pockets before the group calmly walk away.
It is understood that the fight may have stemmed from an altercation involving the theft of a phone, Manchester Evening News reported.
Police said they were called to the scene and found a 23-year-old man slipping in and out of consciousness.
The footage was taken by CCTV belonging to the New Union pub on Princess Street. They have since passed it on to the police.
GMP said that after being taken to Manchester Royal Infirmary, medics discovered the man had a fractured eye socket and was discharged later that day.
They are now appealing for any witnesses to come forward.
Detective Sergeant Natalie Qualters said “We know that there were a number of people in the area at the time of the incident, so I am hopeful that there are some people out there who may be able to assist with our investigation.”
Anyone who may have witnessed the incident is asked to contact police on 0161 856 4409 alternatively via 101 or the independent charity Crimestoppers.