A Uber Eats delivery biker and his friend punched and kicked a customer to the ground after he allegedly failed to pay enough.
Shocking video shows the Uber Eats worker and his accomplice attack the man outside a chicken shop in Nottingham, punching him and pushing him to the ground.
They continue their onslaught and kick him viciously around the head while he is pinned to the pavement.
Another man can be seen standing in the background holding a bag which looks like a takeaway.
"This is a bit mad," the man filming the violent scene exclaims as the warring factions punch and kick each other.
Another man then seems to break up the fight in a second short clip.
The video only shows short snippets of the incident so it is not clear what happened before or after the altercation.
A Nottinghamshire Police spokesman confirmed they were not previously aware of the incident but after seeing the video they are now investigating.
A statement said: "The incident has not been reported to the police.
"Now it has been brought to our attention we will conduct enquiries into this public order incident."
An Uber spokesman confirmed the firm is investigating the incident: "This is totally unacceptable behaviour and we are investigating."