Zhou and Zhu have shown that if \(\mathscr{C}\) is an (n + 2)-angulated category and \(\mathscr{X}\) is a cluster tilting subcategory of \(\mathscr{C}\) , then the quotient category \(\mathscr{C}/\mathscr{X}\) is an n-abelian category. We show that if \(\mathscr{C}\) has Auslander-Reiten (n + 2)-angles, then \(\mathscr{C}/\mathscr{X}\) has Auslander-Reiten n-exact sequences.
