The popular MTV reality show is filming its fourth season in Florence.
The network said in a statement late Monday that two cast members were involved in a crash. The statement said no alcohol was involved and no one was arrested. It provided no further details.
Phone messages left for Snooki's manager, Scott Talarico, were not immediately returned Monday night.
SallyAnn Salsano, executive producer at "Jersey Shore" production company 495, tells The Star-Ledger newspaper that the incident was "just a minor fender bender." She says the show is still filming.
Photos posted on celebrity gossip website TMZ.com show Polizzi and co-star Deena Nicole Cortese, apparently uninjured, sitting on the sidewalk after the crash.
The show's first and third season are set in Seaside Heights, N.J. The second season sent the cast to Miami.
MTV is owned by Viacom Inc.