Pure Norwegian Seafood has admitted to selling and exporting frozen salmon unfit for human consumption over “a number of years” after an investigation launched by its parent company uncovered serious breaches in protocol.

Norwegian salmon farmer Masoval said it began to recall fish products sold by Pure Norwegian Seafood in October after becoming suspicious of “irregularities” at the western Norway-based processor. Two people at the company were suspended, and accounting firm EY was hired to conduct an investigation.

Masoval acquired 65 percent of Pure Norwegian Seafood in June 2021.