  The anomalous Hall effect in the noncollinear antiferromagnetic metals
Mn(3)Ge and Mn(3)Sn has been observed after a theoretical prediction made by us
(EPL, 108, 67001 (2014)). The experimental values of the anomalous Hall
conductivities (AHC) are large as are the theoretical values. Recently measured
thermoelectric properties mirror the large AHC and clearly show that the
transport is by quasiparticles at the Fermi energy. We here make an attempt to
unravel the origin of the large AHC and propose that both Mn(3)Sn and Mn(3)Ge
host Weyl points, which were recently discovered in semimetals. For this
purpose we determine the electronic structure ab initio in the local
spin-density functional approximation. The Weyl points are found to occur below
the Fermi energy and we argue that spots of large Berry flux ('hot spot') that
are seen at the Fermi surface are produced by the Weyl nodes.
