Amazon Japan said on Thursday the item had been raided by the Japan Fair Trade Commission on suspicion of possible anti-trust violation.
Citing sources related to the matter, Kyodo news agency said the online retailer is usually suspected of possibly asking suppliers to shoulder part of the cost incurred via selling their products at a discount on Amazon Japan.
Amazon Japan said the item was cooperating fully with regulators, declining to elaborate.
Amazon Japan had come under regulatory scrutiny before. In a previous anti-trust probe, the Fair Trade Commission found the firm had required suppliers that will sell their products on multiple
platforms to list them on Amazon Japan at the same or lower cost.
Amazon Japan agreed to drop the practice as well as the regulators ended the probe last June.
The Japan Fair Trade Commission declined to comment on the case.