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Nicole "Snooki" Polizzi was arrested on the beach around 3:25 p.m. Friday and charged with disorderly conduct, said Seaside Heights Police Chief Thomas Boyd. That came after other beachgoers reported Polizzi was bothering them.
Polizzi was taken to police headquarters, where she was processed and released on a summons.
MTV declined comment on the arrest, which came one day after the premiere of the show's second season.
"Jersey Shore" focuses on the escapades of a group of hard-partying, 20-something alleged Italian-Americans at a shore house.