P.C.
Most school districts will not discuss another child with you regardless of circumstances. The other child may have been punished or the parent may have been phoned, but they will not discuss it with you for privacy reasons. Which makes sense. Would you want the school to discuss your child with another parent? Phone the teacher, express your concern, and stress how upset your daughter was/is. You may need to tell your daughter to stay away from the other child. Maybe the teachers could keep an extra eye on the kids until things settle down.