The incident remains an isolated case and the U.S. Food and Drug Administration is leading the investigation, Gorton's spokesman Jud Reis said. FDA spokesman Brad A. Swezey declined to comment on the investigation into what he called "suspected tampering."

The Gloucester, Mass., company recalled about 1,000 cases of its 6 Crispy Battered Fish Fillets in 11 states, including Pennsylvania and Delaware.

Tracy Rowan of New Freedom, Pa., called police last month to report that she and her 9-year-old daughter had discovered the pills as they ate dinner. They and Rowan's 10-year-old son were examined at a hospital but were not sickened. - AP