  Muon spin rotation measurements supported by magnetization experiments have
been carried out in a stoichiometric high-$T_c$ parent compound La$_2$CuO$_4$
in %the a temperature range from 2~K to 340~K and in transverse magnetic fields
up to 5~T. Along with the antiferromagnetic local field, muon spin rotation
spectra indicate presence of an additional source of magnetic field on the
muon. The characteristic splitting of about 45~G coming from this additional
magnetic field is consistent with spontaneous circulating currents model of
Varma.
