Shocking video shows a topless man punching an older motorist as he lay on his back during an alleged row over a disabled parking spot.
It is claimed the older man confronted the younger man for parking in a disabled spot and dragged him out of his car by the neck.
Footage only captures part of the incident as the younger motorists stands over the other man and hits him with a flurry of punches to the face.
The older man raises his arms in a desperate attempt to protect himself but a number of punches connect.
The video has sparked a debate over who is to blame for the incident in Batley, West Yorkshire.
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People claiming to be witnesses have alleged that the younger man retaliated after he was provoked.
A photo posted online allegedly shows the young man with red marks on his neck.
The video was posted on Facebook to a local crime spotting page with the caption: "Batley town centre. Fight over a disabled parking spot! Info from eyewitness: As someone who saw this whole thing of the video started right from the beginning maybe there wouldn't be so much sympathy for the old man!
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"A man who wasn't driving just walking by took offence to them been parked there and dragged the lad out of the car!
"This is self defence, they tried driving off and he stood in front of the car chasing them round the car not letting them drive off! Don't console what the young lad did but he's not entirely to blame!"
It is thought the older of the two men lying on the road can be heard saying "c'mon you've got to do better than that you b**".
Another man gets out of the car and stands behind the men and watches.
A photograph posted in the comments allegedly shows the younger man with red marks around his neck.
A woman who posted the photo on Facebook wrote: This is the young lad's neck, my friend was there, saw it and told me what had happened when I posted the video.
"I think if the old man hadn't kept on at the young lad then maybe he wouldn't have retaliated as he did.
"Two wrongs don't make a right but that video is only showing the end and not the full event."
The video and photo has sparked huge debate as to who was at fault for the incident, with some backing the younger man and others the "old guy".
A Facebook user claimed: "I saw this old dude chasing after the young lads looking to fight them. I'm not sure if this is before or after that though, or what started it."
Mirror Online has contacted West Yorkshire Police for comment.
