  Let $G$ be a collineation group of a thick finite generalised hexagon or
generalised octagon $\Gamma$. If $G$ acts primitively on the points of
$\Gamma$, then a recent result of Bamberg et al. shows that $G$ must be an
almost simple group of Lie type. We show that, furthermore, the minimal normal
subgroup $S$ of $G$ cannot be a Suzuki group or a Ree group of type
$^2\text{G}_2$, and that if $S$ is a Ree group of type $^2\text{F}_4$, then
$\Gamma$ is (up to point--line duality) the classical Ree--Tits generalised
octagon.
