Crystal Castles co-founder Ethan Kath (whose real name is Claudio Palmieri) is the subject of an active sex crimes investigation in Toronto, as The Daily Beast reports. Pitchfork has confirmed the existence of an “ongoing investigation” into Palmieri with the Toronto PD. While a representative could not disclose the nature of the crimes due to the active status of the case, “sources with knowledge of the investigation” told the Daily Beast that the police investigation includes complaints “from several women.”

The Daily Beast also reports that a woman involved in the investigation (who has chosen to remain anonymous for now) alleges that Palmieri began communicating with her online when she was 15 and “initiated a sexual relationship” at age 16. “I want this guy’s insane horrible mistreatment of underage girls to be out in the open for everyone to know and to protect themselves,” she told them. Pitchfork has reached out to Palmieri’s attorney for comment.

In October, former Crystal Castles frontwoman Alice Glass issued a statement accusing Palmieri of rape and assault. The following month, Palmieri filed a defamation lawsuit against her, denying the allegations.

Update 12/21 7:15 p.m. ET: An attorney representing Kath denied the accusations on behalf of his client. “These sickening and vile allegations are an attempt to injure my client’s reputation and in turn hurt actual victims of abuse,” he told Pitchfork.