Nassau County police are searching for a 15-year-old Elmont girl who was last seen Thursday.

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Cassandra Bercy was last seen leaving her home about 6 p.m., police said. She is described as 145 pounds and 5-foot-6 inches.

Those with information about her whereabouts should call the missing persons squad at 516-573-7347 or call 911. All calls will be kept confidential.