  We update our numerical investigation of topological structures around static
quarks in pure gauge QCD by results of the first runs including dynamical
quarks. Simulations were performed on an $8^3\times4$ lattice, with $SU(3)$
Wilson action, with 3 flavours of quarks of equal mass, both in the confinement
and deconfinement phase. In the confinement phase we observe indications for
the existence of a flux tube between a static quark and antiquark, flux-tube
breaking for large separations, and local correlation between the topological
charge density and chiral condensate. In the deconfinement phase almost all
configurations turn out to be topologically trivial.
