Analysis of INTEGRAL Core Program and public Open Time observations has recently provided a sample of 60 extragalactic sources selected in the 20-100 keV band above a flux of 1.5 10 ^ { -11 } erg cm ^ { -2 } s ^ { -1 } .
As this band probes heavily obscured regions/objects , i.e .
those that could be missed in optical , UV , and even X-ray surveys , our sample offers the opportunity to study the extragalactic sky from a different point of view with respect to surveys at lower energies .
We present an update of our analysis , including the first sample of AGNs detected above 100 keV .
We also discuss the results of follow up observations performed at optical and X-ray frequencies with the aim of classifying our objects and studying the effects of intrinsic absorption in gamma-ray selected AGNs .
The average redshift of our sample is 0.134 while the mean 20-100 keV luminosity in Log is 43.84 ; if blazars are excluded these numbers become 0.022 and 43.48 respectively .
Defining an absorbed object as one with N _ { H } above 10 ^ { 22 } atoms cm ^ { -2 } , we find that absorption is present in 60 % of the objects with at most 14 % of the total sample due to Compton thick active galaxies .
Almost all Seyfert 2s in our sample are absorbed as are 24 % of Seyfert 1s .
We also present broad-band spectral information on a sub-sample of the brightest objects : our observations indicate a mean photon index of \Gamma =1.8 spanning from 30-50 keV to greater than 200 keV .
Finally , we discuss the LogN/LogS distribution in the 20-100 and 100-150 keV bands derived from our sample .
The present data highlight the capability of INTEGRAL to probe the extragalactic gamma-ray sky , to discover new AGNs and to find absorbed objects .