A gang of youths caused trouble after converging on a town centre McDonald's.
Police were called to Churchill Way, Leyland, at around 11.30pm on Friday, after receiving initial reports of a mass fight.
In fact, it is not believed there was a fight, but a spokesman for police said the group were asked to move on because of their "rowdy and inconsiderate" behaviour.
They initially refused to move until more police, including a dog handler, were called in.
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