Can't delete Organisation by API

I have try to delete Organisation use REST API but receive strange for me error. What this error mean? ID of Organisation is correct, I receive it by GET /api/v1/organizations command.

404: Not Found

404: Requested resource was not found

No route matches [DELETE] /api/v1/organization/42

Sorry, but the Phoenix is not able to find your resource. Try checking the URL for errors.