Former Sonic Team leader and Sonic the Hedgehog programmer Yuji Naka It was reported that he was arrested in connection with the ongoing operation Square Enix insider trading investigation.

Japanese news site FNN Prime Online reports that Naka is now the latest suspect in a case of insider trading surrounding the new Dragon Quest game.

Two former Square Enix employees on Thursday They were arrested in Tokyo as part of a suspected insider trading scheme.

Taisuke Sazaki and Fumiaki Suzuki were arrested for acquiring shares in Japanese developer Aiming shortly before it was announced that it was working on a new Dragon Quest game.

The two reportedly bought about ¥47 million ($336,300) worth of shares in Aiming before it was announced that it was developing the Dragon Quest Tact mobile title.

Now, according to FNN, the Special Investigation Department of the Tokyo District Attorney’s Office has arrested Naka for a similar potential violation.

Dragon Quest Tact was allegedly in the works on Naka before it was announced Balan’s World of Wonders for Square Enix at the time—purchased about 10,000 shares of Aiming stock worth about ¥2.8 million ($20,000).

By buying the stock before the announcement, all three suspects are believed to be able to knowingly use insider information to resell the stock when its value rises.

Following the arrest of the two original suspects, Square Enix released a statement confirming the pair were former employees and saying it was working with authorities on the investigation.

“Today, some media reported that Square Enix’s former employees are under investigation on suspicion of insider trading,” the report said.

“We have fully cooperated with the Securities and Exchange Commission’s inquiries. As the investigation is being conducted by the Tokyo District Attorney’s Office, we will continue to cooperate fully with the investigation.

“We deeply regret the great inconvenience this has caused to all concerned. We dealt with this incident seriously, including taking internal disciplinary measures against the suspected employees.”

Yuji Naka has reportedly been arrested as part of an investigation into Square Enix insider trading

Square Enix is ​​Yuji Naka’s former employer, where he directed the critical flop Balan Wonderland before leaving the company last year.

However, development on Balan went so poorly that Naka would later claim and sue Square Enix six months before his release, he was removed from the project.

Active initially Balan opposed the development of Wonderworld in a series of explosive tweets in April.

“The game developers had to improve their games to the end, and I think it’s wrong to prevent them from achieving that goal,” Naka said in April, as translated by VGC.

“I asked my lawyer to negotiate with our business partners to at least allow me to handle the development of Balan Wonderworld until the end, but they ignored my pleas, so I finally decided to file a lawsuit.

“Because of this, Balan Wonderworld received all the criticism and comments that you all know so well,” he said. “It is very unfortunate that the project that I led from the beginning had such a result.

“Personally, I think it’s a real shame that Balan Wonderworld is being released in its current state. I wanted to show the world an action game. Therefore, I believe that Square Enix and Arzest are companies that do not care about games or their fans.”