  The measurement of heavy-flavour (charm and beauty) production in
ultra-relativistic heavy-ion collisions provides an important contribution to
the study of the properties of the hot and dense medium created in such
collisions. One approach to measure heavy-flavour production is via electrons
from semi-leptonic decays of heavy-flavour hadrons. In this contribution we
present the nuclear modification factor $(R_{{\rm{AA}}})$ and the azimuthal
anisotropy $(v_{2})$ of heavy-flavour decay electrons in Pb-Pb collisions at
$\sqrt{s_\mathit{{\rm{NN}}}}= 2.76$ TeV, which are sensitive to the interaction
of c and b quarks with the medium. We also present, for the first time, the
azimuthal angular correlations of heavy-flavour decay electrons and charged
hadrons, $\Delta\phi(\mathit{HFE},h)$, in Pb-Pb collisions and the
corresponding near-side yield ratio $(I_{\rm{AA}})$.
