  The NA61/SHINE experiment aims to discover the critical point of strongly
interacting matter and study the properties of the onset of deconfinement. For
these goals a scan of the two dimensional phase diagram ($T-\mu_{B}$) is being
performed at the SPS by measurements of hadron production in proton-proton,
proton-nucleus and nucleus-nucleus interactions as a function of collision
energy. This paper presents preliminary results from Be+Be collisions on
pseudorapidity dependences of transverse momentum and multiplicity fluctuations
expressed in terms of strongly intensive quantities. It is shown that
non-trivial effects evolve from the Poissonian-like fluctuations for small
pseudorapidity intervals with expansion of the acceptance. These fluctuations
are supposed to be sensitive to the existence of the critical point. The
results will be compared to the predictions from the EPOS model.
