I would say it's both, because ethnic and religious are often.... There are ethnic groups within Nigeria as well, but it's mainly on religious grounds. For example, you have Fulani Christians. They are also targeted, so it's not only ethnic.
It's not only us who are saying this. Genocide Watch also issued a warning that there are genocidal acts in the region. That's why we're calling for an investigation. Civil society should not bear the brunt of investigating what's happening in the Middle Belt and northern Nigeria.