  We present the results of a 500 ksec observation of the Perseus cluster with
INTEGRAL, with the aim of investigating the possible diffuse non-thermal
component detected in a previous Chandra observation. In the 3-20 keV band with
the JEM-X instrument, we detect the source with high significance and resolve
it spatially. Above 20 keV with IBIS/ISGRI, we find that the source is
point-like, and the cluster could be detected up to 120 keV. From the
broad-band ISGRI/JEM-X spectrum, although we detect a non-thermal component, we
find that the high-energy flux is variable and is consistent with the
extrapolation of the 2-10 keV flux of the central AGN, NGC 1275. The
extrapolation of the non-thermal component claimed from Chandra data exceeds
the INTEGRAL spectrum by a factor of 3.
