  In continuation of work begun in \cite{FR}, we study in this article those
Auslander--Reiten components of the algebras $\Dist(G_r)$ that contain simple
modules or baby Verma modules, where $\Dist(G_r)$ is the algebra of
distributions of the $r$-th Frobenius kernel of the smooth reductive group $G$,
defined over an algebraically closed field of positive characteristic.
