A group of 11 members of the US Congress is calling on the Biden administration to launch an investigation Sony SONYalleging that the company’s business practices in Japan adversely affect the performance of microsoft corp‘S MSFT Xbox and other American companies in Japan gambling market.

Members of Congress raised concerns that Sony’s behavior could violate agreements between the US and Japan. acc axios. Those concerns were made public Thursday when Sen. Maria Cantwell (D-WA) questioned the US trade representative Catherine Tai about the issue during a trade hearing. In addition, 10 members of the House of Representatives sent letters to Tai and the Secretary of Commerce Gina Raimondoprompts them to act.

See also: Microsoft says 10 years is “sufficient” for Sony to develop alternatives to “Call of Duty”.

“Today we are writing to draw your attention to the unbalanced Japanese video game market, which we fear may be the result of discriminatory trade practices that may go against the spirit of the US-Japan Digital Trade Agreement,” read one of the letters .

“The Japanese government’s effective no-prosecution policy on Sony appears to be a serious impediment to US exports, with real implications for Microsoft and the many US game developers and publishers that sell worldwide but weigh on their revenues in Japan see practices methods exercises.”

For years, Sony has had a distinct advantage over Xbox in the Japanese gaming market. Despite occasionally securing exclusive game titles, Sony’s dominance hasn’t made it an easy binary competition Nintendo NTDOY take the lead, leaving Sony and Microsoft behind.

Coincidentally, this pressure on Sony coincided with the company’s own campaign to urge antitrust authorities to block Microsoft’s proposed acquisition Activision Blizzard ATVI for $68.7 billion.

David CuddyA Microsoft spokesman told Axios that “Sony’s anti-competitive tactics deserve discussion, and we welcome more…