J.K. Rowling is reportedly threatening legal action against Amnesty International over language used in a report about a women’s centre she founded for victims of sexual violence. The dispute centers on claims that the report portrayed the service as “gender critical” and “anti-rights,” descriptions that have drawn formal concern in Britain.

According to the available details, the UK’s charities regulator is now looking into complaints linked to Amnesty’s report. The issue appears to focus on whether the organization’s characterisation of the centre was fair and appropriate, given that the facility is described as providing support for abused women.

The row reflects a wider and highly charged debate in the UK over sex-based services, women’s spaces and the language used by rights groups. Rowling has become one of the most prominent public figures in these arguments, and any legal threat from her is likely to intensify scrutiny of how advocacy organizations describe groups involved in the issue.

For now, attention is on the regulator’s review and on whether Amnesty International will face further pressure over its wording. The case has added another flashpoint to the continuing clash between women’s service providers, campaign groups and activists over policy and public representation.