Two groups of youngsters traded blows in a broad daylight brawl outside a McDonalds in Magaluf.
Shirtless youths believed to be British got into a punch-up with another group described locally as Spaniards.
One of the men appeared to end up knocked out on the pavement before shocked onlookers stepped in to help.
Footage of the incident - said to have occurred on Saturday evening - showed the youngsters starting their scrap on the pavement before it spilled onto the street.
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