  During the Core Programme, INTEGRAL has surveyed a large portion of the sky
(around 9000 square degrees); although INTEGRAL is not optimized for
extra-galactic studies its observations have nevertheless given us the
opportunity to explore the sky behind our Galaxy, something which is impossible
in some wavebands due to the presence of strong absorption. Preliminary results
from this exploration are presented and compared with the pre-launch
expectations. In particular, we detail all extragalactic detections obtained so
far: 10 active galaxies and one cluster of galaxies. Of these sources, many
have previously been studied at energies above 10-20 keV while a few are new
hard X-ray discoveries. Since the number of detections is smaller than
estimated on the basis of the IBIS/ISGRI sensitivity, it is likely that some of
the new ISGRI sources found in this survey are extragalactic objects; a few of
these are likely to be AGN and are described in detail.
