  Measurements of open heavy flavour production in p--A collisions allow the
investigation of Cold Nuclear Matter effects. In addition, they are an
important tool for a complementary investigation of the long-range correlations
found in small systems in the light flavour sector. In this work, production
measurements of D mesons at mid-rapidity in p--Pb collisions at $\sqrt{s_{\rm
NN}}$ = 5.02 TeV are reported. Production yields are also reported for the
heavy-flavour hadron decay electrons at central rapidity at $\sqrt{s_{\rm NN}}$
= 5.02 and 8.16 TeV. The elliptic flow ($v_{\rm 2}$) of heavy-flavour hadron
decay electrons in high-multiplicity p-Pb collisions at $\sqrt{s_{\rm NN}}$ =
5.02 TeV is found to be positive with a significance larger than $5 \sigma$.
