  The measurements of the minimum bias events provide valuable information on
the basic properties of the $pp$ interactions. The results at the new highest
energy of $pp$ collisions, $\sqrt{s}$ = 13 TeV, obtained using the ATLAS
detector, are shown. They include distributions of charged particle
pseudorapidity density, transverse momentum and multiplicity. The properties of
the underlying event, determined with respect to a leading high-$p_{T}$
particle, are also presented. In both cases the new results are compared with
those from earlier studies of the $pp$ collisions at $\sqrt{s}$ = 7 TeV.
